72753197 has 4 divisors (see below), whose sum is σ = 79367136. Its totient is φ = 66139260.

The previous prime is 72753193. The next prime is 72753253. The reversal of 72753197 is 79135727.

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 not a de Polignac number, because 72753197 - 2² = 72753193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72753193) 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, 3306953 + ... + 3306974.

It is an arithmetic number, because the mean of its divisors is an integer number (19841784).

Almost surely, 2^72753197 is an apocalyptic number.

It is an amenable number.

72753197 is a deficient number, since it is larger than the sum of its proper divisors (6613939).

72753197 is a wasteful number, since it uses less digits than its factorization.

72753197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6613938.

The product of its digits is 92610, while the sum is 41.

The square root of 72753197 is about 8529.5484640161. The cubic root of 72753197 is about 417.4623954082.

The spelling of 72753197 in words is "seventy-two million, seven hundred fifty-three thousand, one hundred ninety-seven".