213417957 has 8 divisors (see below), whose sum is σ = 287320384. Its totient is φ = 140897088.

The previous prime is 213417923. The next prime is 213417973. The reversal of 213417957 is 759714312.

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

It is not a de Polignac number, because 213417957 - 2¹⁰ = 213416933 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 (213417907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345028 + ... + 345645.

It is an arithmetic number, because the mean of its divisors is an integer number (35915048).

Almost surely, 2^213417957 is an apocalyptic number.

It is an amenable number.

213417957 is a deficient number, since it is larger than the sum of its proper divisors (73902427).

213417957 is a wasteful number, since it uses less digits than its factorization.

213417957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690779.

The product of its digits is 52920, while the sum is 39.

The square root of 213417957 is about 14608.8314727770. The cubic root of 213417957 is about 597.5996292844.

The spelling of 213417957 in words is "two hundred thirteen million, four hundred seventeen thousand, nine hundred fifty-seven".