72725469 has 4 divisors (see below), whose sum is σ = 96967296. Its totient is φ = 48483644.

The previous prime is 72725467. The next prime is 72725479. The reversal of 72725469 is 96452727.

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 72725469 - 2¹ = 72725467 is a prime.

It is a super-2 number, since 2×72725469² = 10577987682539922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72725469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72725467) 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, 12120909 + ... + 12120914.

It is an arithmetic number, because the mean of its divisors is an integer number (24241824).

Almost surely, 2^72725469 is an apocalyptic number.

It is an amenable number.

72725469 is a deficient number, since it is larger than the sum of its proper divisors (24241827).

72725469 is a wasteful number, since it uses less digits than its factorization.

72725469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24241826.

The product of its digits is 211680, while the sum is 42.

The square root of 72725469 is about 8527.9229006834. The cubic root of 72725469 is about 417.4093536697.

The spelling of 72725469 in words is "seventy-two million, seven hundred twenty-five thousand, four hundred sixty-nine".