74702723 has 4 divisors (see below), whose sum is σ = 74744400. Its totient is φ = 74661048.

The previous prime is 74702717. The next prime is 74702759. The reversal of 74702723 is 32720747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32720747 = 41 ⋅798067.

It is a cyclic number.

It is not a de Polignac number, because 74702723 - 2⁶ = 74702659 is a prime.

It is a super-2 number, since 2×74702723² = 11160993647229458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74702723.

It is not an unprimeable number, because it can be changed into a prime (74702713) 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, 18023 + ... + 21776.

It is an arithmetic number, because the mean of its divisors is an integer number (18686100).

Almost surely, 2^74702723 is an apocalyptic number.

74702723 is a deficient number, since it is larger than the sum of its proper divisors (41677).

74702723 is a wasteful number, since it uses less digits than its factorization.

74702723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41676.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 74702723 is about 8643.0737009469. The cubic root of 74702723 is about 421.1584101169.

The spelling of 74702723 in words is "seventy-four million, seven hundred two thousand, seven hundred twenty-three".