962491591 has 2 divisors, whose sum is σ = 962491592. Its totient is φ = 962491590.

The previous prime is 962491561. The next prime is 962491609. The reversal of 962491591 is 195194269.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (195194269) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 962491591 - 2¹¹ = 962489543 is a prime.

It is a super-2 number, since 2×962491591² = 1852780125491422562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (962491561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481245795 + 481245796.

It is an arithmetic number, because the mean of its divisors is an integer number (481245796).

Almost surely, 2^962491591 is an apocalyptic number.

962491591 is a deficient number, since it is larger than the sum of its proper divisors (1).

962491591 is an equidigital number, since it uses as much as digits as its factorization.

962491591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 46.

The square root of 962491591 is about 31024.0485913750. The cubic root of 962491591 is about 987.3375357574.

The spelling of 962491591 in words is "nine hundred sixty-two million, four hundred ninety-one thousand, five hundred ninety-one".