70044187 has 4 divisors (see below), whose sum is σ = 70150816. Its totient is φ = 69937560.

The previous prime is 70044181. The next prime is 70044209. The reversal of 70044187 is 78144007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78144007 = 6173 ⋅12659.

It is a cyclic number.

It is not a de Polignac number, because 70044187 - 2³ = 70044179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70044181) 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, 52323 + ... + 53644.

It is an arithmetic number, because the mean of its divisors is an integer number (17537704).

Almost surely, 2^70044187 is an apocalyptic number.

70044187 is a deficient number, since it is larger than the sum of its proper divisors (106629).

70044187 is a wasteful number, since it uses less digits than its factorization.

70044187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106628.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 70044187 is about 8369.2405270729. The cubic root of 70044187 is about 412.2152294709.

The spelling of 70044187 in words is "seventy million, forty-four thousand, one hundred eighty-seven".