72743718 has 8 divisors (see below), whose sum is σ = 145487448. Its totient is φ = 24247904.

The previous prime is 72743707. The next prime is 72743729. The reversal of 72743718 is 81734727.

It is an interprime number because it is at equal distance from previous prime (72743707) and next prime (72743729).

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

72743718 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6061971 + ... + 6061982.

It is an arithmetic number, because the mean of its divisors is an integer number (18185931).

Almost surely, 2^72743718 is an apocalyptic number.

72743718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72743718 is a wasteful number, since it uses less digits than its factorization.

72743718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12123958.

The product of its digits is 65856, while the sum is 39.

The square root of 72743718 is about 8528.9927893040. The cubic root of 72743718 is about 417.4442642558. Note that the first 3 decimals are identical.

The spelling of 72743718 in words is "seventy-two million, seven hundred forty-three thousand, seven hundred eighteen".