70637 has 4 divisors (see below), whose sum is σ = 80736. Its totient is φ = 60540.

The previous prime is 70627. The next prime is 70639. The reversal of 70637 is 73607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70637 - 2⁴ = 70621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70637.

It is not an unprimeable number, because it can be changed into a prime (70639) 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, 5039 + ... + 5052.

It is an arithmetic number, because the mean of its divisors is an integer number (20184).

2⁷⁰⁶³⁷ is an apocalyptic number.

It is an amenable number.

70637 is a deficient number, since it is larger than the sum of its proper divisors (10099).

70637 is a wasteful number, since it uses less digits than its factorization.

70637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 70637 is about 265.7762216603. The cubic root of 70637 is about 41.3374880203.

It can be divided in two parts, 70 and 637, that added together give a palindrome (707).

The spelling of 70637 in words is "seventy thousand, six hundred thirty-seven".