72943754 has 8 divisors (see below), whose sum is σ = 117832260. Its totient is φ = 33666336.

The previous prime is 72943751. The next prime is 72943757. The reversal of 72943754 is 45734927.

It is an interprime number because it is at equal distance from previous prime (72943751) and next prime (72943757).

It can be written as a sum of positive squares in 2 ways, for example, as 65529025 + 7414729 = 8095^2 + 2723^2 .

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

It is a super-2 number, since 2×72943754² = 10641582495225032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72943751) 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, 1402739 + ... + 1402790.

Almost surely, 2^72943754 is an apocalyptic number.

72943754 is a deficient number, since it is larger than the sum of its proper divisors (44888506).

72943754 is a wasteful number, since it uses less digits than its factorization.

72943754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805544.

The product of its digits is 211680, while the sum is 41.

The square root of 72943754 is about 8540.7115628617. The cubic root of 72943754 is about 417.8265536510.

The spelling of 72943754 in words is "seventy-two million, nine hundred forty-three thousand, seven hundred fifty-four".