70926817 has 8 divisors (see below), whose sum is σ = 78447656. Its totient is φ = 63700992.

The previous prime is 70926809. The next prime is 70926883. The reversal of 70926817 is 71862907.

It can be written as a sum of positive squares in 4 ways, for example, as 37564641 + 33362176 = 6129^2 + 5776^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(70926817) divides (70926817-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 70926817 - 2³ = 70926809 is a prime.

It is a super-2 number, since 2×70926817² = 10061226739502978, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70926817.

It is not an unprimeable number, because it can be changed into a prime (70926017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73248 + ... + 74209.

It is an arithmetic number, because the mean of its divisors is an integer number (9805957).

Almost surely, 2^70926817 is an apocalyptic number.

It is an amenable number.

70926817 is a deficient number, since it is larger than the sum of its proper divisors (7520839).

70926817 is a wasteful number, since it uses less digits than its factorization.

70926817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147507.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 70926817 is about 8421.8060414617. The cubic root of 70926817 is about 413.9394549220.

The spelling of 70926817 in words is "seventy million, nine hundred twenty-six thousand, eight hundred seventeen".