1894874099 has 2 divisors, whose sum is σ = 1894874100. Its totient is φ = 1894874098.

The previous prime is 1894874087. The next prime is 1894874117. The reversal of 1894874099 is 9904784981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1894874099 - 2⁸ = 1894873843 is a prime.

It is a super-2 number, since 2×1894874099² = 7181095702122123602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1894874299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 947437049 + 947437050.

It is an arithmetic number, because the mean of its divisors is an integer number (947437050).

Almost surely, 2^1894874099 is an apocalyptic number.

1894874099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1894874099 is an equidigital number, since it uses as much as digits as its factorization.

1894874099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The square root of 1894874099 is about 43530.1516078224. The cubic root of 1894874099 is about 1237.4475110751.

The spelling of 1894874099 in words is "one billion, eight hundred ninety-four million, eight hundred seventy-four thousand, ninety-nine".