961998412 has 6 divisors (see below), whose sum is σ = 1683497228. Its totient is φ = 480999204.

The previous prime is 961998371. The next prime is 961998449. The reversal of 961998412 is 214899169.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120249798 + ... + 120249805.

Almost surely, 2^961998412 is an apocalyptic number.

It is an amenable number.

961998412 is a deficient number, since it is larger than the sum of its proper divisors (721498816).

961998412 is a wasteful number, since it uses less digits than its factorization.

961998412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240499607 (or 240499605 counting only the distinct ones).

The product of its digits is 279936, while the sum is 49.

The square root of 961998412 is about 31016.0992389436. The cubic root of 961998412 is about 987.1688702733.

The spelling of 961998412 in words is "nine hundred sixty-one million, nine hundred ninety-eight thousand, four hundred twelve".