70910231 has 4 divisors (see below), whose sum is σ = 81040272. Its totient is φ = 60780192.

The previous prime is 70910221. The next prime is 70910233. The reversal of 70910231 is 13201907.

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

It is a cyclic number.

It is not a de Polignac number, because 70910231 - 2¹⁴ = 70893847 is a prime.

It is a super-2 number, since 2×70910231² = 10056521720946722, 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 = 70910197 and 70910206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70910233) 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, 5065010 + ... + 5065023.

It is an arithmetic number, because the mean of its divisors is an integer number (20260068).

Almost surely, 2^70910231 is an apocalyptic number.

70910231 is a deficient number, since it is larger than the sum of its proper divisors (10130041).

70910231 is a wasteful number, since it uses less digits than its factorization.

70910231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10130040.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 70910231 is about 8420.8212782365. The cubic root of 70910231 is about 413.9071862854.

The spelling of 70910231 in words is "seventy million, nine hundred ten thousand, two hundred thirty-one".