70026587 has 4 divisors (see below), whose sum is σ = 74145816. Its totient is φ = 65907360.

The previous prime is 70026581. The next prime is 70026599. The reversal of 70026587 is 78562007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78562007 = 113 ⋅695239.

It is a cyclic number.

It is not a de Polignac number, because 70026587 - 2⁸ = 70026331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70026581) 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, 2059589 + ... + 2059622.

It is an arithmetic number, because the mean of its divisors is an integer number (18536454).

Almost surely, 2^70026587 is an apocalyptic number.

70026587 is a deficient number, since it is larger than the sum of its proper divisors (4119229).

70026587 is a wasteful number, since it uses less digits than its factorization.

70026587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119228.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 70026587 is about 8368.1889916517. The cubic root of 70026587 is about 412.1807008107.

The spelling of 70026587 in words is "seventy million, twenty-six thousand, five hundred eighty-seven".