70370631 has 12 divisors (see below), whose sum is σ = 101894520. Its totient is φ = 46799280.

The previous prime is 70370621. The next prime is 70370653. The reversal of 70370631 is 13607307.

It is not a de Polignac number, because 70370631 - 2¹⁵ = 70337863 is a prime.

It is a super-2 number, since 2×70370631² = 9904051414676322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70370595 and 70370604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70370621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5560 + ... + 13101.

It is an arithmetic number, because the mean of its divisors is an integer number (8491210).

Almost surely, 2^70370631 is an apocalyptic number.

70370631 is a deficient number, since it is larger than the sum of its proper divisors (31523889).

70370631 is a wasteful number, since it uses less digits than its factorization.

70370631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19086 (or 19083 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 70370631 is about 8388.7204626212. The cubic root of 70370631 is about 412.8546195698.

Adding to 70370631 its reverse (13607307), we get a palindrome (83977938).

The spelling of 70370631 in words is "seventy million, three hundred seventy thousand, six hundred thirty-one".