70769979 has 24 divisors (see below), whose sum is σ = 117872352. Its totient is φ = 40078080.

The previous prime is 70769971. The next prime is 70769983. The reversal of 70769979 is 97996707.

It is not a de Polignac number, because 70769979 - 2³ = 70769971 is a prime.

It is a super-3 number, since 3×70769979³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70769971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2149 + ... + 12089.

It is an arithmetic number, because the mean of its divisors is an integer number (4911348).

Almost surely, 2^70769979 is an apocalyptic number.

70769979 is a deficient number, since it is larger than the sum of its proper divisors (47102373).

70769979 is a wasteful number, since it uses less digits than its factorization.

70769979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067 (or 10064 counting only the distinct ones).

The product of its (nonzero) digits is 1500282, while the sum is 54.

The square root of 70769979 is about 8412.4894650751. The cubic root of 70769979 is about 413.6341197860.

The spelling of 70769979 in words is "seventy million, seven hundred sixty-nine thousand, nine hundred seventy-nine".