72944901 has 8 divisors (see below), whose sum is σ = 108066560. Its totient is φ = 48629916.

The previous prime is 72944897. The next prime is 72944923. The reversal of 72944901 is 10944927.

It is not a de Polignac number, because 72944901 - 2² = 72944897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72944941) 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, 1350805 + ... + 1350858.

It is an arithmetic number, because the mean of its divisors is an integer number (13508320).

Almost surely, 2^72944901 is an apocalyptic number.

It is an amenable number.

72944901 is a deficient number, since it is larger than the sum of its proper divisors (35121659).

72944901 is a wasteful number, since it uses less digits than its factorization.

72944901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701672 (or 2701666 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 72944901 is about 8540.7787115696. The cubic root of 72944901 is about 417.8287436696.

The spelling of 72944901 in words is "seventy-two million, nine hundred forty-four thousand, nine hundred one".