75672439 has 4 divisors (see below), whose sum is σ = 76738320. Its totient is φ = 74606560.

The previous prime is 75672427. The next prime is 75672451. The reversal of 75672439 is 93427657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93427657 = 4931 ⋅18947.

It is an interprime number because it is at equal distance from previous prime (75672427) and next prime (75672451).

It is a cyclic number.

It is not a de Polignac number, because 75672439 - 2²¹ = 73575287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75672395 and 75672404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75672239) 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, 532834 + ... + 532975.

It is an arithmetic number, because the mean of its divisors is an integer number (19184580).

Almost surely, 2^75672439 is an apocalyptic number.

75672439 is a deficient number, since it is larger than the sum of its proper divisors (1065881).

75672439 is a wasteful number, since it uses less digits than its factorization.

75672439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065880.

The product of its digits is 317520, while the sum is 43.

The square root of 75672439 is about 8698.9906885799. The cubic root of 75672439 is about 422.9729335292.

The spelling of 75672439 in words is "seventy-five million, six hundred seventy-two thousand, four hundred thirty-nine".