401862487 has 8 divisors (see below), whose sum is σ = 434589120. Its totient is φ = 369395040.

The previous prime is 401862469. The next prime is 401862497. The reversal of 401862487 is 784268104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401862487 is a prime.

It is a super-2 number, since 2×401862487² = 322986916915650338, 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 (401862427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61564 + ... + 67777.

It is an arithmetic number, because the mean of its divisors is an integer number (54323640).

Almost surely, 2^401862487 is an apocalyptic number.

401862487 is a deficient number, since it is larger than the sum of its proper divisors (32726633).

401862487 is a wasteful number, since it uses less digits than its factorization.

401862487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129593.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 401862487 is about 20046.5080999161. The cubic root of 401862487 is about 737.9481061867.

The spelling of 401862487 in words is "four hundred one million, eight hundred sixty-two thousand, four hundred eighty-seven".