961940505 has 8 divisors (see below), whose sum is σ = 1539104832. Its totient is φ = 513034928.

The previous prime is 961940501. The next prime is 961940519. The reversal of 961940505 is 505049169.

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 961940505 - 2² = 961940501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (961940501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32064669 + ... + 32064698.

It is an arithmetic number, because the mean of its divisors is an integer number (192388104).

Almost surely, 2^961940505 is an apocalyptic number.

It is an amenable number.

961940505 is a deficient number, since it is larger than the sum of its proper divisors (577164327).

961940505 is a wasteful number, since it uses less digits than its factorization.

961940505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64129375.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 961940505 is about 31015.1657258187. The cubic root of 961940505 is about 987.1490625016.

The spelling of 961940505 in words is "nine hundred sixty-one million, nine hundred forty thousand, five hundred five".