63623740 has 24 divisors (see below), whose sum is σ = 133760592. Its totient is φ = 25420800.

The previous prime is 63623701. The next prime is 63623743. The reversal of 63623740 is 4732636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63623743) 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, 31027 + ... + 33013.

It is an arithmetic number, because the mean of its divisors is an integer number (5573358).

Almost surely, 2^63623740 is an apocalyptic number.

It is an amenable number.

63623740 is an abundant number, since it is smaller than the sum of its proper divisors (70136852).

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

63623740 is a wasteful number, since it uses less digits than its factorization.

63623740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597 (or 3595 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 63623740 is about 7976.4490846491. The cubic root of 63623740 is about 399.2145838129.

The spelling of 63623740 in words is "sixty-three million, six hundred twenty-three thousand, seven hundred forty".