63698742 has 24 divisors (see below), whose sum is σ = 138181680. Its totient is φ = 21207120.

The previous prime is 63698741. The next prime is 63698749. The reversal of 63698742 is 24789636.

63698742 is a `hidden beast` number, since 636 + 9 + 8 + 7 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63698741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18367 + ... + 21557.

It is an arithmetic number, because the mean of its divisors is an integer number (5757570).

Almost surely, 2^63698742 is an apocalyptic number.

63698742 is an abundant number, since it is smaller than the sum of its proper divisors (74482938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63698742 is a wasteful number, since it uses less digits than its factorization.

63698742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308 (or 4305 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 63698742 is about 7981.1491653771. The cubic root of 63698742 is about 399.3713918135.

The spelling of 63698742 in words is "sixty-three million, six hundred ninety-eight thousand, seven hundred forty-two".