63872401 has 4 divisors (see below), whose sum is σ = 64642032. Its totient is φ = 63102772.

The previous prime is 63872399. The next prime is 63872407. The reversal of 63872401 is 10427836.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63872401 - 2¹ = 63872399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63872407) 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, 384691 + ... + 384856.

It is an arithmetic number, because the mean of its divisors is an integer number (16160508).

Almost surely, 2^63872401 is an apocalyptic number.

It is an amenable number.

63872401 is a deficient number, since it is larger than the sum of its proper divisors (769631).

63872401 is an equidigital number, since it uses as much as digits as its factorization.

63872401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769630.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 63872401 is about 7992.0210835558. The cubic root of 63872401 is about 399.7339918884.

The spelling of 63872401 in words is "sixty-three million, eight hundred seventy-two thousand, four hundred one".