70839272 has 32 divisors (see below), whose sum is σ = 160729920. Its totient is φ = 28573440.

The previous prime is 70839253. The next prime is 70839281. The reversal of 70839272 is 27293807.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 36254 + ... + 38157.

It is an arithmetic number, because the mean of its divisors is an integer number (5022810).

Almost surely, 2^70839272 is an apocalyptic number.

It is an amenable number.

70839272 is an abundant number, since it is smaller than the sum of its proper divisors (89890648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70839272 is a wasteful number, since it uses less digits than its factorization.

70839272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74441 (or 74437 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 70839272 is about 8416.6069172797. The cubic root of 70839272 is about 413.7690762556.

The spelling of 70839272 in words is "seventy million, eight hundred thirty-nine thousand, two hundred seventy-two".