70036457 has 4 divisors (see below), whose sum is σ = 70186896. Its totient is φ = 69886020.

The previous prime is 70036441. The next prime is 70036513. The reversal of 70036457 is 75463007.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75463007 = 641 ⋅117727.

It is a cyclic number.

It is not a de Polignac number, because 70036457 - 2⁴ = 70036441 is a prime.

It is a super-2 number, since 2×70036457² = 9810210618225698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70066457) 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, 74519 + ... + 75452.

It is an arithmetic number, because the mean of its divisors is an integer number (17546724).

Almost surely, 2^70036457 is an apocalyptic number.

It is an amenable number.

70036457 is a deficient number, since it is larger than the sum of its proper divisors (150439).

70036457 is a wasteful number, since it uses less digits than its factorization.

70036457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150438.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 70036457 is about 8368.7787042077. The cubic root of 70036457 is about 412.2000650388.

The spelling of 70036457 in words is "seventy million, thirty-six thousand, four hundred fifty-seven".