70980815 has 8 divisors (see below), whose sum is σ = 85224048. Its totient is φ = 56753280.

The previous prime is 70980773. The next prime is 70980841. The reversal of 70980815 is 51808907.

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

It is a de Polignac number, because none of the positive numbers 2^k-70980815 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11660 + ... + 16670.

It is an arithmetic number, because the mean of its divisors is an integer number (10653006).

Almost surely, 2^70980815 is an apocalyptic number.

70980815 is a deficient number, since it is larger than the sum of its proper divisors (14243233).

70980815 is a wasteful number, since it uses less digits than its factorization.

70980815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 70980815 is about 8425.0112759568. The cubic root of 70980815 is about 414.0444750620.

The spelling of 70980815 in words is "seventy million, nine hundred eighty thousand, eight hundred fifteen".