74697961 has 4 divisors (see below), whose sum is σ = 80443972. Its totient is φ = 68951952.

The previous prime is 74697929. The next prime is 74697979. The reversal of 74697961 is 16979647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16979647 = 2903 ⋅5849.

It can be written as a sum of positive squares in 2 ways, for example, as 22857961 + 51840000 = 4781^2 + 7200^2 .

It is a cyclic number.

It is not a de Polignac number, because 74697961 - 2⁵ = 74697929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74697361) 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, 2872986 + ... + 2873011.

It is an arithmetic number, because the mean of its divisors is an integer number (20110993).

Almost surely, 2^74697961 is an apocalyptic number.

It is an amenable number.

74697961 is a deficient number, since it is larger than the sum of its proper divisors (5746011).

74697961 is a wasteful number, since it uses less digits than its factorization.

74697961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746010.

The product of its digits is 571536, while the sum is 49.

The square root of 74697961 is about 8642.7982158558. The cubic root of 74697961 is about 421.1494608717.

The spelling of 74697961 in words is "seventy-four million, six hundred ninety-seven thousand, nine hundred sixty-one".