63962661 has 32 divisors (see below), whose sum is σ = 101744640. Its totient is φ = 34969536.

The previous prime is 63962651. The next prime is 63962663. The reversal of 63962661 is 16626936.

It is a happy number.

It is not a de Polignac number, because 63962661 - 2⁷ = 63962533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63962663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76930 + ... + 77756.

It is an arithmetic number, because the mean of its divisors is an integer number (3179520).

Almost surely, 2^63962661 is an apocalyptic number.

It is an amenable number.

63962661 is a deficient number, since it is larger than the sum of its proper divisors (37781979).

63962661 is a wasteful number, since it uses less digits than its factorization.

63962661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993.

The product of its digits is 69984, while the sum is 39.

The square root of 63962661 is about 7997.6659720196. The cubic root of 63962661 is about 399.9221952837.

The spelling of 63962661 in words is "sixty-three million, nine hundred sixty-two thousand, six hundred sixty-one".