667963098 has 40 divisors (see below), whose sum is σ = 1632803040. Its totient is φ = 202412520.

The previous prime is 667963097. The next prime is 667963111. The reversal of 667963098 is 890369766.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (667963097) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 185638 + ... + 189201.

It is an arithmetic number, because the mean of its divisors is an integer number (40820076).

Almost surely, 2^667963098 is an apocalyptic number.

667963098 is an abundant number, since it is smaller than the sum of its proper divisors (964839942).

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

667963098 is a wasteful number, since it uses less digits than its factorization.

667963098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374864 (or 374855 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 667963098 is about 25844.9820661574. The cubic root of 667963098 is about 874.1463666115.

The spelling of 667963098 in words is "six hundred sixty-seven million, nine hundred sixty-three thousand, ninety-eight".