3215400879 has 8 divisors (see below), whose sum is σ = 4425498112. Its totient is φ = 2074452120.

The previous prime is 3215400871. The next prime is 3215400901. The reversal of 3215400879 is 9780045123.

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

It is not a de Polignac number, because 3215400879 - 2³ = 3215400871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215400871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17287009 + ... + 17287194.

It is an arithmetic number, because the mean of its divisors is an integer number (553187264).

Almost surely, 2^3215400879 is an apocalyptic number.

3215400879 is a deficient number, since it is larger than the sum of its proper divisors (1210097233).

3215400879 is a wasteful number, since it uses less digits than its factorization.

3215400879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34574237.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 3215400879 is about 56704.5049268574. The cubic root of 3215400879 is about 1475.9728721485.

The spelling of 3215400879 in words is "three billion, two hundred fifteen million, four hundred thousand, eight hundred seventy-nine".