213638701 has 8 divisors (see below), whose sum is σ = 220968704. Its totient is φ = 206336160.

The previous prime is 213638699. The next prime is 213638713. The reversal of 213638701 is 107836312.

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

It is a cyclic number.

It is not a de Polignac number, because 213638701 - 2¹ = 213638699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213638731) 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, 9625 + ... + 22801.

It is an arithmetic number, because the mean of its divisors is an integer number (27621088).

Almost surely, 2^213638701 is an apocalyptic number.

It is an amenable number.

213638701 is a deficient number, since it is larger than the sum of its proper divisors (7330003).

213638701 is a wasteful number, since it uses less digits than its factorization.

213638701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13731.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 213638701 is about 14616.3846761092. The cubic root of 213638701 is about 597.8055961408.

The spelling of 213638701 in words is "two hundred thirteen million, six hundred thirty-eight thousand, seven hundred one".