18770966 has 4 divisors (see below), whose sum is σ = 28156452. Its totient is φ = 9385482.

The previous prime is 18770963. The next prime is 18770971. The reversal of 18770966 is 66907781.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18770963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4692740 + ... + 4692743.

It is an arithmetic number, because the mean of its divisors is an integer number (7039113).

Almost surely, 2^18770966 is an apocalyptic number.

18770966 is a deficient number, since it is larger than the sum of its proper divisors (9385486).

18770966 is an equidigital number, since it uses as much as digits as its factorization.

18770966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385485.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 18770966 is about 4332.5472876819. The cubic root of 18770966 is about 265.7636262976.

The spelling of 18770966 in words is "eighteen million, seven hundred seventy thousand, nine hundred sixty-six".