18961676 has 6 divisors (see below), whose sum is σ = 33182940. Its totient is φ = 9480836.

The previous prime is 18961661. The next prime is 18961687. The reversal of 18961676 is 67616981.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2370206 + ... + 2370213.

It is an arithmetic number, because the mean of its divisors is an integer number (5530490).

Almost surely, 2^18961676 is an apocalyptic number.

It is an amenable number.

18961676 is a deficient number, since it is larger than the sum of its proper divisors (14221264).

18961676 is a wasteful number, since it uses less digits than its factorization.

18961676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740423 (or 4740421 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 18961676 is about 4354.5006602365. The cubic root of 18961676 is about 266.6606338913.

The spelling of 18961676 in words is "eighteen million, nine hundred sixty-one thousand, six hundred seventy-six".