70867749 has 8 divisors (see below), whose sum is σ = 94575712. Its totient is φ = 47202480.

The previous prime is 70867733. The next prime is 70867751. The reversal of 70867749 is 94776807.

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

It is not a de Polignac number, because 70867749 - 2⁴ = 70867733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70867698 and 70867707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70867789) 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 7 ways as a sum of consecutive naturals, for example, 6574 + ... + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (11821964).

Almost surely, 2^70867749 is an apocalyptic number.

It is an amenable number.

70867749 is a deficient number, since it is larger than the sum of its proper divisors (23707963).

70867749 is a wasteful number, since it uses less digits than its factorization.

70867749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21347.

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 70867749 is about 8418.2984622785. The cubic root of 70867749 is about 413.8245131299.

The spelling of 70867749 in words is "seventy million, eight hundred sixty-seven thousand, seven hundred forty-nine".