213934764 has 24 divisors (see below), whose sum is σ = 503601840. Its totient is φ = 70680064.

The previous prime is 213934757. The next prime is 213934771. The reversal of 213934764 is 467439312.

It is an interprime number because it is at equal distance from previous prime (213934757) and next prime (213934771).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77529 + ... + 80240.

It is an arithmetic number, because the mean of its divisors is an integer number (20983410).

Almost surely, 2^213934764 is an apocalyptic number.

It is an amenable number.

213934764 is an abundant number, since it is smaller than the sum of its proper divisors (289667076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213934764 is a wasteful number, since it uses less digits than its factorization.

213934764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157889 (or 157887 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 213934764 is about 14626.5089477975. The cubic root of 213934764 is about 598.0816173280.

The spelling of 213934764 in words is "two hundred thirteen million, nine hundred thirty-four thousand, seven hundred sixty-four".