189629801 has 2 divisors, whose sum is σ = 189629802. Its totient is φ = 189629800.

The previous prime is 189629789. The next prime is 189629809. The reversal of 189629801 is 108926981.

189629801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159643225 + 29986576 = 12635^2 + 5476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189629801 is a prime.

It is a super-2 number, since 2×189629801² = 71918922854599202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189629809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94814900 + 94814901.

It is an arithmetic number, because the mean of its divisors is an integer number (94814901).

Almost surely, 2^189629801 is an apocalyptic number.

It is an amenable number.

189629801 is a deficient number, since it is larger than the sum of its proper divisors (1).

189629801 is an equidigital number, since it uses as much as digits as its factorization.

189629801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 189629801 is about 13770.6136755048. The cubic root of 189629801 is about 574.5160904072.

The spelling of 189629801 in words is "one hundred eighty-nine million, six hundred twenty-nine thousand, eight hundred one".