961249699 has 2 divisors, whose sum is σ = 961249700. Its totient is φ = 961249698.

The previous prime is 961249697. The next prime is 961249733. The reversal of 961249699 is 996942169.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 961249699 - 2¹ = 961249697 is a prime.

Together with 961249697, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (961249693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480624849 + 480624850.

It is an arithmetic number, because the mean of its divisors is an integer number (480624850).

Almost surely, 2^961249699 is an apocalyptic number.

961249699 is a deficient number, since it is larger than the sum of its proper divisors (1).

961249699 is an equidigital number, since it uses as much as digits as its factorization.

961249699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1889568, while the sum is 55.

The square root of 961249699 is about 31004.0271416473. The cubic root of 961249699 is about 986.9127028389.

The spelling of 961249699 in words is "nine hundred sixty-one million, two hundred forty-nine thousand, six hundred ninety-nine".