70404231 has 4 divisors (see below), whose sum is σ = 93872312. Its totient is φ = 46936152.

The previous prime is 70404227. The next prime is 70404241. The reversal of 70404231 is 13240407.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70404231 - 2² = 70404227 is a prime.

It is a super-2 number, since 2×70404231² = 9913511485402722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70404198 and 70404207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70404211) 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, 11734036 + ... + 11734041.

It is an arithmetic number, because the mean of its divisors is an integer number (23468078).

Almost surely, 2^70404231 is an apocalyptic number.

70404231 is a deficient number, since it is larger than the sum of its proper divisors (23468081).

70404231 is a wasteful number, since it uses less digits than its factorization.

70404231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23468080.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 70404231 is about 8390.7229128365. The cubic root of 70404231 is about 412.9203179433.

Adding to 70404231 its reverse (13240407), we get a palindrome (83644638).

The spelling of 70404231 in words is "seventy million, four hundred four thousand, two hundred thirty-one".