72434291 has 8 divisors (see below), whose sum is σ = 75769344. Its totient is φ = 69114760.

The previous prime is 72434281. The next prime is 72434293. The reversal of 72434291 is 19243427.

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

It is a cyclic number.

It is not a de Polignac number, because 72434291 - 2⁶ = 72434227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72434293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6260 + ... + 13566.

It is an arithmetic number, because the mean of its divisors is an integer number (9471168).

Almost surely, 2^72434291 is an apocalyptic number.

72434291 is a deficient number, since it is larger than the sum of its proper divisors (3335053).

72434291 is a wasteful number, since it uses less digits than its factorization.

72434291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7761.

The product of its digits is 12096, while the sum is 32.

The square root of 72434291 is about 8510.8337429420. The cubic root of 72434291 is about 416.8515344630.

The spelling of 72434291 in words is "seventy-two million, four hundred thirty-four thousand, two hundred ninety-one".