63672437 has 8 divisors (see below), whose sum is σ = 64643904. Its totient is φ = 62707968.

The previous prime is 63672409. The next prime is 63672473. The reversal of 63672437 is 73427636.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63672437 - 2⁶ = 63672373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63672437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63672407) 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, 18278 + ... + 21480.

It is an arithmetic number, because the mean of its divisors is an integer number (8080488).

Almost surely, 2^63672437 is an apocalyptic number.

It is an amenable number.

63672437 is a deficient number, since it is larger than the sum of its proper divisors (971467).

63672437 is a wasteful number, since it uses less digits than its factorization.

63672437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499.

The product of its digits is 127008, while the sum is 38.

The square root of 63672437 is about 7979.5010495644. The cubic root of 63672437 is about 399.3164095089.

The spelling of 63672437 in words is "sixty-three million, six hundred seventy-two thousand, four hundred thirty-seven".