72941401 has 4 divisors (see below), whose sum is σ = 78552292. Its totient is φ = 67330512.

The previous prime is 72941377. The next prime is 72941423. The reversal of 72941401 is 10414927.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11397376 + 61544025 = 3376^2 + 7845^2 .

It is a cyclic number.

It is not a de Polignac number, because 72941401 - 2⁷ = 72941273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72941401.

It is not an unprimeable number, because it can be changed into a prime (72941431) 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, 2805426 + ... + 2805451.

It is an arithmetic number, because the mean of its divisors is an integer number (19638073).

Almost surely, 2^72941401 is an apocalyptic number.

It is an amenable number.

72941401 is a deficient number, since it is larger than the sum of its proper divisors (5610891).

72941401 is a wasteful number, since it uses less digits than its factorization.

72941401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610890.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 72941401 is about 8540.5738097624. The cubic root of 72941401 is about 417.8220608905.

The spelling of 72941401 in words is "seventy-two million, nine hundred forty-one thousand, four hundred one".