70724727 has 12 divisors (see below), whose sum is σ = 102275784. Its totient is φ = 47095440.

The previous prime is 70724711. The next prime is 70724749. The reversal of 70724727 is 72742707.

It is not a de Polignac number, because 70724727 - 2⁴ = 70724711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70724691 and 70724700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70724827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4693 + ... + 12785.

It is an arithmetic number, because the mean of its divisors is an integer number (8522982).

Almost surely, 2^70724727 is an apocalyptic number.

70724727 is a deficient number, since it is larger than the sum of its proper divisors (31551057).

70724727 is a wasteful number, since it uses less digits than its factorization.

70724727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9070 (or 9067 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 70724727 is about 8409.7994625318. The cubic root of 70724727 is about 413.5459385053.

The spelling of 70724727 in words is "seventy million, seven hundred twenty-four thousand, seven hundred twenty-seven".