74973953 has 4 divisors (see below), whose sum is σ = 76802628. Its totient is φ = 73145280.

The previous prime is 74973949. The next prime is 74973967. The reversal of 74973953 is 35937947.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44249104 + 30724849 = 6652^2 + 5543^2 .

It is a cyclic number.

It is not a de Polignac number, because 74973953 - 2² = 74973949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74973898 and 74973907.

It is not an unprimeable number, because it can be changed into a prime (74973973) 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, 914276 + ... + 914357.

It is an arithmetic number, because the mean of its divisors is an integer number (19200657).

Almost surely, 2^74973953 is an apocalyptic number.

It is an amenable number.

74973953 is a deficient number, since it is larger than the sum of its proper divisors (1828675).

74973953 is a wasteful number, since it uses less digits than its factorization.

74973953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828674.

The product of its digits is 714420, while the sum is 47.

The square root of 74973953 is about 8658.7500830085. The cubic root of 74973953 is about 421.6675072412.

The spelling of 74973953 in words is "seventy-four million, nine hundred seventy-three thousand, nine hundred fifty-three".