74238965 has 4 divisors (see below), whose sum is σ = 89086764. Its totient is φ = 59391168.

The previous prime is 74238961. The next prime is 74238977. The reversal of 74238965 is 56983247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56983247 = 3851 ⋅14797.

It can be written as a sum of positive squares in 2 ways, for example, as 35724529 + 38514436 = 5977^2 + 6206^2 .

It is a cyclic number.

It is not a de Polignac number, because 74238965 - 2² = 74238961 is a prime.

It is a super-2 number, since 2×74238965² = 11022847848542450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74238961) 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, 7423892 + ... + 7423901.

It is an arithmetic number, because the mean of its divisors is an integer number (22271691).

Almost surely, 2^74238965 is an apocalyptic number.

It is an amenable number.

74238965 is a deficient number, since it is larger than the sum of its proper divisors (14847799).

74238965 is a wasteful number, since it uses less digits than its factorization.

74238965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14847798.

The product of its digits is 362880, while the sum is 44.

The square root of 74238965 is about 8616.2036303699. The cubic root of 74238965 is about 420.2850766785.

The spelling of 74238965 in words is "seventy-four million, two hundred thirty-eight thousand, nine hundred sixty-five".