63809492 has 12 divisors (see below), whose sum is σ = 111726720. Its totient is φ = 31887576.

The previous prime is 63809491. The next prime is 63809507. The reversal of 63809492 is 29490836.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63809491) 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, 7943 + ... + 13809.

It is an arithmetic number, because the mean of its divisors is an integer number (9310560).

Almost surely, 2^63809492 is an apocalyptic number.

It is an amenable number.

63809492 is a deficient number, since it is larger than the sum of its proper divisors (47917228).

63809492 is a wasteful number, since it uses less digits than its factorization.

63809492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590 (or 8588 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 63809492 is about 7988.0843761192. The cubic root of 63809492 is about 399.6027138733.

The spelling of 63809492 in words is "sixty-three million, eight hundred nine thousand, four hundred ninety-two".