167030993 has 8 divisors (see below), whose sum is σ = 171525480. Its totient is φ = 162593280.

The previous prime is 167030951. The next prime is 167030999. The reversal of 167030993 is 399030761.

167030993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10705984 + 156325009 = 3272^2 + 12503^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 167030993 - 2²⁰ = 165982417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167030999) 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, 8198 + ... + 20031.

It is an arithmetic number, because the mean of its divisors is an integer number (21440685).

Almost surely, 2^167030993 is an apocalyptic number.

It is an amenable number.

167030993 is a deficient number, since it is larger than the sum of its proper divisors (4494487).

167030993 is an equidigital number, since it uses as much as digits as its factorization.

167030993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28387.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 167030993 is about 12924.0470828607. The cubic root of 167030993 is about 550.7219093346.

The spelling of 167030993 in words is "one hundred sixty-seven million, thirty thousand, nine hundred ninety-three".