70675637 has 4 divisors (see below), whose sum is σ = 71834316. Its totient is φ = 69516960.

The previous prime is 70675621. The next prime is 70675643. The reversal of 70675637 is 73657607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73657607 = 41 ⋅1796527.

It can be written as a sum of positive squares in 2 ways, for example, as 39828721 + 30846916 = 6311^2 + 5554^2 .

It is a cyclic number.

It is not a de Polignac number, because 70675637 - 2⁴ = 70675621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70675594 and 70675603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70675037) 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, 579248 + ... + 579369.

It is an arithmetic number, because the mean of its divisors is an integer number (17958579).

Almost surely, 2^70675637 is an apocalyptic number.

It is an amenable number.

70675637 is a deficient number, since it is larger than the sum of its proper divisors (1158679).

70675637 is a wasteful number, since it uses less digits than its factorization.

70675637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158678.

The product of its (nonzero) digits is 185220, while the sum is 41.

The square root of 70675637 is about 8406.8803369621. The cubic root of 70675637 is about 413.4502356785.

The spelling of 70675637 in words is "seventy million, six hundred seventy-five thousand, six hundred thirty-seven".