70872305 has 16 divisors (see below), whose sum is σ = 97542144. Its totient is φ = 48425280.

The previous prime is 70872283. The next prime is 70872311. The reversal of 70872305 is 50327807.

It is not a de Polignac number, because 70872305 - 2²⁰ = 69823729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6800 + ... + 13710.

It is an arithmetic number, because the mean of its divisors is an integer number (6096384).

Almost surely, 2^70872305 is an apocalyptic number.

It is an amenable number.

70872305 is a deficient number, since it is larger than the sum of its proper divisors (26669839).

70872305 is a wasteful number, since it uses less digits than its factorization.

70872305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7216.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 70872305 is about 8418.5690589316. The cubic root of 70872305 is about 413.8333810287.

The spelling of 70872305 in words is "seventy million, eight hundred seventy-two thousand, three hundred five".