74407973 has 4 divisors (see below), whose sum is σ = 74823840. Its totient is φ = 73992108.

The previous prime is 74407969. The next prime is 74407979. The reversal of 74407973 is 37970447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37970447 = 23 ⋅1650889.

It is a cyclic number.

It is not a de Polignac number, because 74407973 - 2² = 74407969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74407973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74407979) 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, 207665 + ... + 208022.

It is an arithmetic number, because the mean of its divisors is an integer number (18705960).

Almost surely, 2^74407973 is an apocalyptic number.

It is an amenable number.

74407973 is a deficient number, since it is larger than the sum of its proper divisors (415867).

74407973 is a wasteful number, since it uses less digits than its factorization.

74407973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415866.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 74407973 is about 8626.0056225347. The cubic root of 74407973 is about 420.6037669433.

The spelling of 74407973 in words is "seventy-four million, four hundred seven thousand, nine hundred seventy-three".