72249693 has 8 divisors (see below), whose sum is σ = 100521408. Its totient is φ = 46072224.

The previous prime is 72249691. The next prime is 72249707. The reversal of 72249693 is 39694227.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72249693 - 2¹ = 72249691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72249691) 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, 523480 + ... + 523617.

It is an arithmetic number, because the mean of its divisors is an integer number (12565176).

Almost surely, 2^72249693 is an apocalyptic number.

It is an amenable number.

72249693 is a deficient number, since it is larger than the sum of its proper divisors (28271715).

72249693 is a wasteful number, since it uses less digits than its factorization.

72249693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047123.

The product of its digits is 163296, while the sum is 42.

The square root of 72249693 is about 8499.9819411573. The cubic root of 72249693 is about 416.4971193560.

The spelling of 72249693 in words is "seventy-two million, two hundred forty-nine thousand, six hundred ninety-three".