213974707 has 2 divisors, whose sum is σ = 213974708. Its totient is φ = 213974706.

The previous prime is 213974689. The next prime is 213974723. The reversal of 213974707 is 707479312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213974707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213974707.

It is not a weakly prime, because it can be changed into another prime (213944707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106987353 + 106987354.

It is an arithmetic number, because the mean of its divisors is an integer number (106987354).

Almost surely, 2^213974707 is an apocalyptic number.

213974707 is a deficient number, since it is larger than the sum of its proper divisors (1).

213974707 is an equidigital number, since it uses as much as digits as its factorization.

213974707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 213974707 is about 14627.8743158396. The cubic root of 213974707 is about 598.1188369100.

The spelling of 213974707 in words is "two hundred thirteen million, nine hundred seventy-four thousand, seven hundred seven".