662434261 has 2 divisors, whose sum is σ = 662434262. Its totient is φ = 662434260.

The previous prime is 662434249. The next prime is 662434271. The reversal of 662434261 is 162434266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 549011761 + 113422500 = 23431^2 + 10650^2 .

It is a cyclic number.

It is not a de Polignac number, because 662434261 - 2⁵ = 662434229 is a prime.

It is a super-2 number, since 2×662434261² = 877638300293232242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662434271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331217130 + 331217131.

It is an arithmetic number, because the mean of its divisors is an integer number (331217131).

Almost surely, 2^662434261 is an apocalyptic number.

It is an amenable number.

662434261 is a deficient number, since it is larger than the sum of its proper divisors (1).

662434261 is an equidigital number, since it uses as much as digits as its factorization.

662434261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 662434261 is about 25737.7982935604. The cubic root of 662434261 is about 871.7278652568.

The spelling of 662434261 in words is "six hundred sixty-two million, four hundred thirty-four thousand, two hundred sixty-one".