70724337 has 4 divisors (see below), whose sum is σ = 94299120. Its totient is φ = 47149556.

The previous prime is 70724321. The next prime is 70724351. The reversal of 70724337 is 73342707.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70724337 - 2⁴ = 70724321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70724298 and 70724307.

It is not an unprimeable number, because it can be changed into a prime (70724377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11787387 + ... + 11787392.

It is an arithmetic number, because the mean of its divisors is an integer number (23574780).

Almost surely, 2^70724337 is an apocalyptic number.

It is an amenable number.

70724337 is a deficient number, since it is larger than the sum of its proper divisors (23574783).

70724337 is a wasteful number, since it uses less digits than its factorization.

70724337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23574782.

The product of its (nonzero) digits is 24696, while the sum is 33.

The square root of 70724337 is about 8409.7762752644. The cubic root of 70724337 is about 413.5451783600.

The spelling of 70724337 in words is "seventy million, seven hundred twenty-four thousand, three hundred thirty-seven".