63620457 has 8 divisors (see below), whose sum is σ = 85702176. Its totient is φ = 41976192.

The previous prime is 63620423. The next prime is 63620483. The reversal of 63620457 is 75402636.

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

It is not a de Polignac number, because 63620457 - 2⁶ = 63620393 is a prime.

It is a super-3 number, since 3×63620457³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (63622457) 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, 109023 + ... + 109604.

It is an arithmetic number, because the mean of its divisors is an integer number (10712772).

Almost surely, 2^63620457 is an apocalyptic number.

It is an amenable number.

63620457 is a deficient number, since it is larger than the sum of its proper divisors (22081719).

63620457 is a wasteful number, since it uses less digits than its factorization.

63620457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218727.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 63620457 is about 7976.2432886667. The cubic root of 63620457 is about 399.2077171726.

The spelling of 63620457 in words is "sixty-three million, six hundred twenty thousand, four hundred fifty-seven".