168976390 has 16 divisors (see below), whose sum is σ = 331808400. Its totient is φ = 61445920.

The previous prime is 168976337. The next prime is 168976391. The reversal of 168976390 is 93679861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168976391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767965 + ... + 768184.

It is an arithmetic number, because the mean of its divisors is an integer number (20738025).

Almost surely, 2^168976390 is an apocalyptic number.

168976390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168976390 is a deficient number, since it is larger than the sum of its proper divisors (162832010).

168976390 is a wasteful number, since it uses less digits than its factorization.

168976390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536167.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 168976390 is about 12999.0918913592. The cubic root of 168976390 is about 552.8517337441.

The spelling of 168976390 in words is "one hundred sixty-eight million, nine hundred seventy-six thousand, three hundred ninety".