70020775 has 24 divisors (see below), whose sum is σ = 95694768. Its totient is φ = 50400000.

The previous prime is 70020767. The next prime is 70020799. The reversal of 70020775 is 57702007.

It is a happy number.

It is not a de Polignac number, because 70020775 - 2³ = 70020767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26515 + ... + 29035.

It is an arithmetic number, because the mean of its divisors is an integer number (3987282).

Almost surely, 2^70020775 is an apocalyptic number.

70020775 is a deficient number, since it is larger than the sum of its proper divisors (25673993).

70020775 is a wasteful number, since it uses less digits than its factorization.

70020775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643 (or 2638 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 28.

The square root of 70020775 is about 8367.8417169543. The cubic root of 70020775 is about 412.1692972348.

The spelling of 70020775 in words is "seventy million, twenty thousand, seven hundred seventy-five".