74321969 has 8 divisors (see below), whose sum is σ = 75000480. Its totient is φ = 73646496.

The previous prime is 74321927. The next prime is 74321987. The reversal of 74321969 is 96912347.

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

It is a cyclic number.

It is not a de Polignac number, because 74321969 - 2⁸ = 74321713 is a prime.

It is a super-2 number, since 2×74321969² = 11047510152073922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74321999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100202 + ... + 100940.

It is an arithmetic number, because the mean of its divisors is an integer number (9375060).

Almost surely, 2^74321969 is an apocalyptic number.

It is an amenable number.

74321969 is a deficient number, since it is larger than the sum of its proper divisors (678511).

74321969 is a wasteful number, since it uses less digits than its factorization.

74321969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519.

The product of its digits is 81648, while the sum is 41.

The square root of 74321969 is about 8621.0190232942. The cubic root of 74321969 is about 420.4416537052.

The spelling of 74321969 in words is "seventy-four million, three hundred twenty-one thousand, nine hundred sixty-nine".