70138627 has 4 divisors (see below), whose sum is σ = 75533920. Its totient is φ = 64743336.

The previous prime is 70138609. The next prime is 70138631. The reversal of 70138627 is 72683107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70138627 - 2⁷ = 70138499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70138592 and 70138601.

It is not an unprimeable number, because it can be changed into a prime (70138637) 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, 2697627 + ... + 2697652.

It is an arithmetic number, because the mean of its divisors is an integer number (18883480).

Almost surely, 2^70138627 is an apocalyptic number.

70138627 is a deficient number, since it is larger than the sum of its proper divisors (5395293).

70138627 is a wasteful number, since it uses less digits than its factorization.

70138627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395292.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 70138627 is about 8374.8807155684. The cubic root of 70138627 is about 412.4004084028.

The spelling of 70138627 in words is "seventy million, one hundred thirty-eight thousand, six hundred twenty-seven".