74861967 has 4 divisors (see below), whose sum is σ = 99815960. Its totient is φ = 49907976.

The previous prime is 74861959. The next prime is 74861977. The reversal of 74861967 is 76916847.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 74861967 - 2³ = 74861959 is a prime.

It is a super-3 number, since 3×74861967³ (a number of 25 digits) contains 333 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 (74861947) 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, 12476992 + ... + 12476997.

It is an arithmetic number, because the mean of its divisors is an integer number (24953990).

Almost surely, 2^74861967 is an apocalyptic number.

74861967 is a deficient number, since it is larger than the sum of its proper divisors (24953993).

74861967 is a wasteful number, since it uses less digits than its factorization.

74861967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24953992.

The product of its digits is 508032, while the sum is 48.

The square root of 74861967 is about 8652.2810287230. The cubic root of 74861967 is about 421.4574592364.

It can be divided in two parts, 7486 and 1967, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 74861967 in words is "seventy-four million, eight hundred sixty-one thousand, nine hundred sixty-seven".