213979004 has 24 divisors (see below), whose sum is σ = 379213968. Its totient is φ = 105638400.

The previous prime is 213978997. The next prime is 213979013. The reversal of 213979004 is 400979312.

213979004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271499 + ... + 272285.

It is an arithmetic number, because the mean of its divisors is an integer number (15800582).

Almost surely, 2^213979004 is an apocalyptic number.

It is an amenable number.

213979004 is a deficient number, since it is larger than the sum of its proper divisors (165234964).

213979004 is a wasteful number, since it uses less digits than its factorization.

213979004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565 (or 1563 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 213979004 is about 14628.0211922187. The cubic root of 213979004 is about 598.1228406533.

The spelling of 213979004 in words is "two hundred thirteen million, nine hundred seventy-nine thousand, four".