74685967 has 4 divisors (see below), whose sum is σ = 74963880. Its totient is φ = 74408056.

The previous prime is 74685953. The next prime is 74685977. The reversal of 74685967 is 76958647.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76958647 = 31 ⋅2482537.

It is a cyclic number.

It is not a de Polignac number, because 74685967 - 2⁷ = 74685839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74685937) 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, 138553 + ... + 139090.

It is an arithmetic number, because the mean of its divisors is an integer number (18740970).

Almost surely, 2^74685967 is an apocalyptic number.

74685967 is a deficient number, since it is larger than the sum of its proper divisors (277913).

74685967 is a wasteful number, since it uses less digits than its factorization.

74685967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277912.

The product of its digits is 2540160, while the sum is 52.

The square root of 74685967 is about 8642.1043155009. The cubic root of 74685967 is about 421.1269188150.

The spelling of 74685967 in words is "seventy-four million, six hundred eighty-five thousand, nine hundred sixty-seven".