70920677 has 4 divisors (see below), whose sum is σ = 71651916. Its totient is φ = 70189440.

The previous prime is 70920659. The next prime is 70920679. The reversal of 70920677 is 77602907.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15358561 + 55562116 = 3919^2 + 7454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70920677 is a prime.

It is a super-2 number, since 2×70920677² = 10059484852276658, 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 70920677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70920679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365474 + ... + 365667.

It is an arithmetic number, because the mean of its divisors is an integer number (17912979).

Almost surely, 2^70920677 is an apocalyptic number.

It is an amenable number.

70920677 is a deficient number, since it is larger than the sum of its proper divisors (731239).

70920677 is an equidigital number, since it uses as much as digits as its factorization.

70920677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731238.

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 70920677 is about 8421.4415036857. The cubic root of 70920677 is about 413.9275099261.

The spelling of 70920677 in words is "seventy million, nine hundred twenty thousand, six hundred seventy-seven".