213763870 has 32 divisors (see below), whose sum is σ = 405895680. Its totient is φ = 80831520.

The previous prime is 213763861. The next prime is 213763871. The reversal of 213763870 is 78367312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213763871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118999 + ... + 120781.

It is an arithmetic number, because the mean of its divisors is an integer number (12684240).

Almost surely, 2^213763870 is an apocalyptic number.

213763870 is a deficient number, since it is larger than the sum of its proper divisors (192131810).

213763870 is a wasteful number, since it uses less digits than its factorization.

213763870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 213763870 is about 14620.6658535102. The cubic root of 213763870 is about 597.9223229941.

The spelling of 213763870 in words is "two hundred thirteen million, seven hundred sixty-three thousand, eight hundred seventy".