70866413 has 2 divisors, whose sum is σ = 70866414. Its totient is φ = 70866412.

The previous prime is 70866391. The next prime is 70866437. The reversal of 70866413 is 31466807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42276004 + 28590409 = 6502^2 + 5347^2 .

It is a cyclic number.

It is not a de Polignac number, because 70866413 - 2¹⁸ = 70604269 is a prime.

It is equal to p_4165991 and since 70866413 and 4165991 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70866443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35433206 + 35433207.

It is an arithmetic number, because the mean of its divisors is an integer number (35433207).

Almost surely, 2^70866413 is an apocalyptic number.

It is an amenable number.

70866413 is a deficient number, since it is larger than the sum of its proper divisors (1).

70866413 is an equidigital number, since it uses as much as digits as its factorization.

70866413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 70866413 is about 8418.2191109521. The cubic root of 70866413 is about 413.8219126380.

The spelling of 70866413 in words is "seventy million, eight hundred sixty-six thousand, four hundred thirteen".