63950121 has 8 divisors (see below), whose sum is σ = 94740960. Its totient is φ = 42633396.

The previous prime is 63950113. The next prime is 63950123. The reversal of 63950121 is 12105936.

63950121 is a `hidden beast` number, since 639 + 5 + 0 + 1 + 21 = 666.

It is not a de Polignac number, because 63950121 - 2³ = 63950113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2368523 = 63950121 / (6 + 3 + 9 + 5 + 0 + 1 + 2 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63950123) 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, 1184235 + ... + 1184288.

It is an arithmetic number, because the mean of its divisors is an integer number (11842620).

Almost surely, 2^63950121 is an apocalyptic number.

It is an amenable number.

63950121 is a deficient number, since it is larger than the sum of its proper divisors (30790839).

63950121 is a wasteful number, since it uses less digits than its factorization.

63950121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368532 (or 2368526 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 63950121 is about 7996.8819548622. The cubic root of 63950121 is about 399.8960584094.

The spelling of 63950121 in words is "sixty-three million, nine hundred fifty thousand, one hundred twenty-one".