920167998 has 8 divisors (see below), whose sum is σ = 1840336008. Its totient is φ = 306722664.

The previous prime is 920167987. The next prime is 920168003. The reversal of 920167998 is 899761029.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

920167998 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 920167998.

It is a congruent 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 in 3 ways as a sum of consecutive naturals, for example, 76680661 + ... + 76680672.

It is an arithmetic number, because the mean of its divisors is an integer number (230042001).

Almost surely, 2^920167998 is an apocalyptic number.

920167998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

920167998 is a wasteful number, since it uses less digits than its factorization.

920167998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153361338.

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 920167998 is about 30334.2710148110. The cubic root of 920167998 is about 972.6480229700.

The spelling of 920167998 in words is "nine hundred twenty million, one hundred sixty-seven thousand, nine hundred ninety-eight".