79473431 has 4 divisors (see below), whose sum is σ = 79713864. Its totient is φ = 79233000.

The previous prime is 79473403. The next prime is 79473439. The reversal of 79473431 is 13437497.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79473431 - 2¹⁴ = 79457047 is a prime.

It is a super-2 number, since 2×79473431² = 12632052469823522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79473439) 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, 119720 + ... + 120381.

It is an arithmetic number, because the mean of its divisors is an integer number (19928466).

Almost surely, 2^79473431 is an apocalyptic number.

79473431 is a deficient number, since it is larger than the sum of its proper divisors (240433).

79473431 is a wasteful number, since it uses less digits than its factorization.

79473431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240432.

The product of its digits is 63504, while the sum is 38.

The square root of 79473431 is about 8914.7872100236. The cubic root of 79473431 is about 429.9394740841.

The spelling of 79473431 in words is "seventy-nine million, four hundred seventy-three thousand, four hundred thirty-one".