70070779 has 8 divisors (see below), whose sum is σ = 72049472. Its totient is φ = 68108040.

The previous prime is 70070771. The next prime is 70070783. The reversal of 70070779 is 97707007.

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

It is a cyclic number.

It is not a de Polignac number, because 70070779 - 2³ = 70070771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70070771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5212 + ... + 12934.

It is an arithmetic number, because the mean of its divisors is an integer number (9006184).

Almost surely, 2^70070779 is an apocalyptic number.

70070779 is a deficient number, since it is larger than the sum of its proper divisors (1978693).

70070779 is a wasteful number, since it uses less digits than its factorization.

70070779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7977.

The product of its (nonzero) digits is 21609, while the sum is 37.

The square root of 70070779 is about 8370.8290509364. The cubic root of 70070779 is about 412.2673881675.

The spelling of 70070779 in words is "seventy million, seventy thousand, seven hundred seventy-nine".