3972662801 has 4 divisors (see below), whose sum is σ = 4065050352. Its totient is φ = 3880275252.

The previous prime is 3972662789. The next prime is 3972662831. The reversal of 3972662801 is 1082662793.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1082662793 = 13873 ⋅78041.

It is a cyclic number.

It is not a de Polignac number, because 3972662801 - 2⁶ = 3972662737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3972662831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46193711 + ... + 46193796.

It is an arithmetic number, because the mean of its divisors is an integer number (1016262588).

Almost surely, 2^3972662801 is an apocalyptic number.

It is an amenable number.

3972662801 is a deficient number, since it is larger than the sum of its proper divisors (92387551).

3972662801 is an equidigital number, since it uses as much as digits as its factorization.

3972662801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92387550.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 3972662801 is about 63029.0631455046. The cubic root of 3972662801 is about 1583.7765241442.

The spelling of 3972662801 in words is "three billion, nine hundred seventy-two million, six hundred sixty-two thousand, eight hundred one".