961940465 has 8 divisors (see below), whose sum is σ = 1162633920. Its totient is φ = 764015472.

The previous prime is 961940453. The next prime is 961940471. The reversal of 961940465 is 564049169.

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

It is a cyclic number.

It is not a de Polignac number, because 961940465 - 2²² = 957746161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691349 + ... + 692738.

It is an arithmetic number, because the mean of its divisors is an integer number (145329240).

Almost surely, 2^961940465 is an apocalyptic number.

It is an amenable number.

961940465 is a deficient number, since it is larger than the sum of its proper divisors (200693455).

961940465 is a wasteful number, since it uses less digits than its factorization.

961940465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384231.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 961940465 is about 31015.1650809729. The cubic root of 961940465 is about 987.1490488189.

The spelling of 961940465 in words is "nine hundred sixty-one million, nine hundred forty thousand, four hundred sixty-five".