72698461 has 4 divisors (see below), whose sum is σ = 79307424. Its totient is φ = 66089500.

The previous prime is 72698449. The next prime is 72698467. The reversal of 72698461 is 16489627.

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 72698461 - 2⁵ = 72698429 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 (72698467) 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, 3304465 + ... + 3304486.

It is an arithmetic number, because the mean of its divisors is an integer number (19826856).

Almost surely, 2^72698461 is an apocalyptic number.

It is an amenable number.

72698461 is a deficient number, since it is larger than the sum of its proper divisors (6608963).

72698461 is a wasteful number, since it uses less digits than its factorization.

72698461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6608962.

The product of its digits is 145152, while the sum is 43.

The square root of 72698461 is about 8526.3392496428. The cubic root of 72698461 is about 417.3576762780.

The spelling of 72698461 in words is "seventy-two million, six hundred ninety-eight thousand, four hundred sixty-one".