167490321 has 8 divisors (see below), whose sum is σ = 227105760. Its totient is φ = 109767552.

The previous prime is 167490319. The next prime is 167490329. The reversal of 167490321 is 123094761.

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

It is not a de Polignac number, because 167490321 - 2¹ = 167490319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (167490329) 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, 472960 + ... + 473313.

It is an arithmetic number, because the mean of its divisors is an integer number (28388220).

Almost surely, 2^167490321 is an apocalyptic number.

It is an amenable number.

167490321 is a deficient number, since it is larger than the sum of its proper divisors (59615439).

167490321 is an equidigital number, since it uses as much as digits as its factorization.

167490321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946335.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 167490321 is about 12941.8051677500. The cubic root of 167490321 is about 551.2262677655.

The spelling of 167490321 in words is "one hundred sixty-seven million, four hundred ninety thousand, three hundred twenty-one".