213977001 has 8 divisors (see below), whose sum is σ = 326060224. Its totient is φ = 122272560.

The previous prime is 213976979. The next prime is 213977033. The reversal of 213977001 is 100779312.

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

It is not a de Polignac number, because 213977001 - 2⁵ = 213976969 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 213977001.

It is not an unprimeable number, because it can be changed into a prime (213977201) 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, 5094670 + ... + 5094711.

It is an arithmetic number, because the mean of its divisors is an integer number (40757528).

Almost surely, 2^213977001 is an apocalyptic number.

213977001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213977001 is a deficient number, since it is larger than the sum of its proper divisors (112083223).

213977001 is a wasteful number, since it uses less digits than its factorization.

213977001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10189391.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 213977001 is about 14627.9527275692. The cubic root of 213977001 is about 598.1209743584.

The spelling of 213977001 in words is "two hundred thirteen million, nine hundred seventy-seven thousand, one".