80198946 has 12 divisors (see below), whose sum is σ = 173764422. Its totient is φ = 26732976.

The previous prime is 80198941. The next prime is 80198947. The reversal of 80198946 is 64989108.

It can be written as a sum of positive squares in only one way, i.e., 75951225 + 4247721 = 8715^2 + 2061^2 .

It is not an unprimeable number, because it can be changed into a prime (80198941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2227731 + ... + 2227766.

Almost surely, 2^80198946 is an apocalyptic number.

80198946 is an abundant number, since it is smaller than the sum of its proper divisors (93565476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80198946 is a wasteful number, since it uses less digits than its factorization.

80198946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455505 (or 4455502 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 80198946 is about 8955.3864238234. The cubic root of 80198946 is about 431.2438224698.

The spelling of 80198946 in words is "eighty million, one hundred ninety-eight thousand, nine hundred forty-six".