401370811 has 2 divisors, whose sum is σ = 401370812. Its totient is φ = 401370810.

The previous prime is 401370793. The next prime is 401370883. The reversal of 401370811 is 118073104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401370811 - 2⁵ = 401370779 is a prime.

It is a super-2 number, since 2×401370811² = 322197055845595442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401370311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200685405 + 200685406.

It is an arithmetic number, because the mean of its divisors is an integer number (200685406).

Almost surely, 2^401370811 is an apocalyptic number.

401370811 is a deficient number, since it is larger than the sum of its proper divisors (1).

401370811 is an equidigital number, since it uses as much as digits as its factorization.

401370811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 401370811 is about 20034.2409639098. The cubic root of 401370811 is about 737.6470252122.

The spelling of 401370811 in words is "four hundred one million, three hundred seventy thousand, eight hundred eleven".