70784725 has 12 divisors (see below), whose sum is σ = 95752800. Its totient is φ = 51479600.

The previous prime is 70784713. The next prime is 70784767. The reversal of 70784725 is 52748707.

It is not a de Polignac number, because 70784725 - 2¹⁵ = 70751957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128425 + ... + 128974.

It is an arithmetic number, because the mean of its divisors is an integer number (7979400).

Almost surely, 2^70784725 is an apocalyptic number.

It is an amenable number.

70784725 is a deficient number, since it is larger than the sum of its proper divisors (24968075).

70784725 is a wasteful number, since it uses less digits than its factorization.

70784725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257420 (or 257415 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 70784725 is about 8413.3658544010. The cubic root of 70784725 is about 413.6628467746.

The spelling of 70784725 in words is "seventy million, seven hundred eighty-four thousand, seven hundred twenty-five".