70485815 has 16 divisors (see below), whose sum is σ = 87218208. Its totient is φ = 54652416.

The previous prime is 70485803. The next prime is 70485827. The reversal of 70485815 is 51858407.

It is an interprime number because it is at equal distance from previous prime (70485803) and next prime (70485827).

It is a cyclic number.

It is not a de Polignac number, because 70485815 - 2⁴ = 70485799 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 15 ways as a sum of consecutive naturals, for example, 28259 + ... + 30651.

It is an arithmetic number, because the mean of its divisors is an integer number (5451138).

Almost surely, 2^70485815 is an apocalyptic number.

70485815 is a deficient number, since it is larger than the sum of its proper divisors (16732393).

70485815 is a wasteful number, since it uses less digits than its factorization.

70485815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 70485815 is about 8395.5830649217. The cubic root of 70485815 is about 413.0797529031.

The spelling of 70485815 in words is "seventy million, four hundred eighty-five thousand, eight hundred fifteen".