213417700 has 36 divisors (see below), whose sum is σ = 463762852. Its totient is φ = 85248000.

The previous prime is 213417689. The next prime is 213417707. The reversal of 213417700 is 7714312.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 51008164 + 162409536 = 7142^2 + 12744^2 .

It is a super-2 number, since 2×213417700² = 91094229346580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213417707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119212 + ... + 120988.

Almost surely, 2^213417700 is an apocalyptic number.

213417700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213417700 is an abundant number, since it is smaller than the sum of its proper divisors (250345152).

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

213417700 is a wasteful number, since it uses less digits than its factorization.

213417700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 213417700 is about 14608.8226767252. The cubic root of 213417700 is about 597.5993894059.

The spelling of 213417700 in words is "two hundred thirteen million, four hundred seventeen thousand, seven hundred".