70022631 has 8 divisors (see below), whose sum is σ = 106701184. Its totient is φ = 40012920.

The previous prime is 70022627. The next prime is 70022639. The reversal of 70022631 is 13622007.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70022631 - 2² = 70022627 is a prime.

It is a super-2 number, since 2×70022631² = 9806337704324322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 3334411 = 70022631 / (7 + 0 + 0 + 2 + 2 + 6 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70022598 and 70022607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70022639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1667185 + ... + 1667226.

It is an arithmetic number, because the mean of its divisors is an integer number (13337648).

Almost surely, 2^70022631 is an apocalyptic number.

70022631 is a deficient number, since it is larger than the sum of its proper divisors (36678553).

70022631 is a wasteful number, since it uses less digits than its factorization.

70022631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334421.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 70022631 is about 8367.9526169787. The cubic root of 70022631 is about 412.1729389133.

Adding to 70022631 its reverse (13622007), we get a palindrome (83644638).

The spelling of 70022631 in words is "seventy million, twenty-two thousand, six hundred thirty-one".