31482879 has 4 divisors (see below), whose sum is σ = 41977176. Its totient is φ = 20988584.

The previous prime is 31482859. The next prime is 31482889. The reversal of 31482879 is 97828413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97828413 = 3 ⋅32609471.

It is a cyclic number.

It is not a de Polignac number, because 31482879 - 2¹³ = 31474687 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 31482879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31482839) 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, 5247144 + ... + 5247149.

It is an arithmetic number, because the mean of its divisors is an integer number (10494294).

Almost surely, 2^31482879 is an apocalyptic number.

31482879 is a deficient number, since it is larger than the sum of its proper divisors (10494297).

31482879 is a wasteful number, since it uses less digits than its factorization.

31482879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10494296.

The product of its digits is 96768, while the sum is 42.

The square root of 31482879 is about 5610.9606129432. The cubic root of 31482879 is about 315.7607513160.

The spelling of 31482879 in words is "thirty-one million, four hundred eighty-two thousand, eight hundred seventy-nine".