70879573 has 2 divisors, whose sum is σ = 70879574. Its totient is φ = 70879572.

The previous prime is 70879493. The next prime is 70879577. The reversal of 70879573 is 37597807.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51581124 + 19298449 = 7182^2 + 4393^2 .

It is a cyclic number.

It is not a de Polignac number, because 70879573 - 2²¹ = 68782421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70879577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35439786 + 35439787.

It is an arithmetic number, because the mean of its divisors is an integer number (35439787).

Almost surely, 2^70879573 is an apocalyptic number.

It is an amenable number.

70879573 is a deficient number, since it is larger than the sum of its proper divisors (1).

70879573 is an equidigital number, since it uses as much as digits as its factorization.

70879573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 370440, while the sum is 46.

The square root of 70879573 is about 8419.0007126737. Note that the first 3 decimals coincide. The cubic root of 70879573 is about 413.8475268374.

The spelling of 70879573 in words is "seventy million, eight hundred seventy-nine thousand, five hundred seventy-three".