70364381 has 2 divisors, whose sum is σ = 70364382. Its totient is φ = 70364380.

The previous prime is 70364351. The next prime is 70364401. The reversal of 70364381 is 18346307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69572281 + 792100 = 8341^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 70364381 - 2⁶ = 70364317 is a prime.

It is a super-2 number, since 2×70364381² = 9902292227026322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70364351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35182190 + 35182191.

It is an arithmetic number, because the mean of its divisors is an integer number (35182191).

Almost surely, 2^70364381 is an apocalyptic number.

It is an amenable number.

70364381 is a deficient number, since it is larger than the sum of its proper divisors (1).

70364381 is an equidigital number, since it uses as much as digits as its factorization.

70364381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 70364381 is about 8388.3479303138. The cubic root of 70364381 is about 412.8423965836.

The spelling of 70364381 in words is "seventy million, three hundred sixty-four thousand, three hundred eighty-one".