401685463 has 4 divisors (see below), whose sum is σ = 409264488. Its totient is φ = 394106440.

The previous prime is 401685461. The next prime is 401685481. The reversal of 401685463 is 364586104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401685463 - 2¹ = 401685461 is a prime.

It is a super-2 number, since 2×401685463² = 322702422371048738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401685461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789433 + ... + 3789538.

It is an arithmetic number, because the mean of its divisors is an integer number (102316122).

Almost surely, 2^401685463 is an apocalyptic number.

401685463 is a deficient number, since it is larger than the sum of its proper divisors (7579025).

401685463 is an equidigital number, since it uses as much as digits as its factorization.

401685463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579024.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 401685463 is about 20042.0922809970. The cubic root of 401685463 is about 737.8397327038.

The spelling of 401685463 in words is "four hundred one million, six hundred eighty-five thousand, four hundred sixty-three".