75670431 has 4 divisors (see below), whose sum is σ = 100893912. Its totient is φ = 50446952.

The previous prime is 75670409. The next prime is 75670453. The reversal of 75670431 is 13407657.

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

It is an interprime number because it is at equal distance from previous prime (75670409) and next prime (75670453).

It is a cyclic number.

It is not a de Polignac number, because 75670431 - 2⁷ = 75670303 is a prime.

It is a super-2 number, since 2×75670431² = 11452028255451522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75670392 and 75670401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75670471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12611736 + ... + 12611741.

It is an arithmetic number, because the mean of its divisors is an integer number (25223478).

Almost surely, 2^75670431 is an apocalyptic number.

75670431 is a deficient number, since it is larger than the sum of its proper divisors (25223481).

75670431 is a wasteful number, since it uses less digits than its factorization.

75670431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25223480.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 75670431 is about 8698.8752721257. The cubic root of 75670431 is about 422.9691922412.

The spelling of 75670431 in words is "seventy-five million, six hundred seventy thousand, four hundred thirty-one".