70371239 has 4 divisors (see below), whose sum is σ = 71421624. Its totient is φ = 69320856.

The previous prime is 70371221. The next prime is 70371241. The reversal of 70371239 is 93217307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93217307 = 17 ⋅5483371.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70371239 is a prime.

It is a super-2 number, since 2×70371239² = 9904222556790242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70371289) 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, 525092 + ... + 525225.

It is an arithmetic number, because the mean of its divisors is an integer number (17855406).

Almost surely, 2^70371239 is an apocalyptic number.

70371239 is a deficient number, since it is larger than the sum of its proper divisors (1050385).

70371239 is a wasteful number, since it uses less digits than its factorization.

70371239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050384.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 70371239 is about 8388.7567016811. The cubic root of 70371239 is about 412.8558085833.

The spelling of 70371239 in words is "seventy million, three hundred seventy-one thousand, two hundred thirty-nine".