74645961 has 8 divisors (see below), whose sum is σ = 107184000. Its totient is φ = 45935952.

The previous prime is 74645959. The next prime is 74645981. The reversal of 74645961 is 16954647.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74645961 - 2¹ = 74645959 is a prime.

It is a super-2 number, since 2×74645961² = 11144038987227042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74645911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956961 + ... + 957038.

It is an arithmetic number, because the mean of its divisors is an integer number (13398000).

Almost surely, 2^74645961 is an apocalyptic number.

It is an amenable number.

74645961 is a deficient number, since it is larger than the sum of its proper divisors (32538039).

74645961 is a wasteful number, since it uses less digits than its factorization.

74645961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914015.

The product of its digits is 181440, while the sum is 42.

The square root of 74645961 is about 8639.7894071557. The cubic root of 74645961 is about 421.0517123058.

The spelling of 74645961 in words is "seventy-four million, six hundred forty-five thousand, nine hundred sixty-one".