74252689 has 9 divisors (see below), whose sum is σ = 86445801. Its totient is φ = 63593460.

The previous prime is 74252687. The next prime is 74252693. The reversal of 74252689 is 98625247.

The square root of 74252689 is 8617.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 74252689 - 2¹ = 74252687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74252687) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 59704 + ... + 60934.

It is an arithmetic number, because the mean of its divisors is an integer number (9605089).

Almost surely, 2^74252689 is an apocalyptic number.

74252689 is the 8617-th square number.

74252689 is the 4309-th centered octagonal number.

It is an amenable number.

74252689 is a deficient number, since it is larger than the sum of its proper divisors (12193112).

74252689 is an frugal number, since it uses more digits than its factorization.

74252689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476 (or 1238 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The cubic root of 74252689 is about 420.3109733982.

The spelling of 74252689 in words is "seventy-four million, two hundred fifty-two thousand, six hundred eighty-nine".