401679953 has 2 divisors, whose sum is σ = 401679954. Its totient is φ = 401679952.

The previous prime is 401679871. The next prime is 401679959. The reversal of 401679953 is 359976104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271195024 + 130484929 = 16468^2 + 11423^2 .

It is a cyclic number.

It is not a de Polignac number, because 401679953 - 2¹⁴ = 401663569 is a prime.

It is a super-2 number, since 2×401679953² = 322693569284164418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401679959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200839976 + 200839977.

It is an arithmetic number, because the mean of its divisors is an integer number (200839977).

Almost surely, 2^401679953 is an apocalyptic number.

It is an amenable number.

401679953 is a deficient number, since it is larger than the sum of its proper divisors (1).

401679953 is an equidigital number, since it uses as much as digits as its factorization.

401679953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 401679953 is about 20041.9548198273. The cubic root of 401679953 is about 737.8363589899.

The spelling of 401679953 in words is "four hundred one million, six hundred seventy-nine thousand, nine hundred fifty-three".