75464939 has 8 divisors (see below), whose sum is σ = 84077568. Its totient is φ = 67144360.

The previous prime is 75464927. The next prime is 75464971. The reversal of 75464939 is 93946457.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75464939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75464893 and 75464902.

It is not an unprimeable number, because it can be changed into a prime (75464239) 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, 72467 + ... + 73500.

It is an arithmetic number, because the mean of its divisors is an integer number (10509696).

Almost surely, 2^75464939 is an apocalyptic number.

75464939 is a deficient number, since it is larger than the sum of its proper divisors (8612629).

75464939 is a wasteful number, since it uses less digits than its factorization.

75464939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146025.

The product of its digits is 816480, while the sum is 47.

The square root of 75464939 is about 8687.0558303720. The cubic root of 75464939 is about 422.5859708578.

The spelling of 75464939 in words is "seventy-five million, four hundred sixty-four thousand, nine hundred thirty-nine".