190093979 has 2 divisors, whose sum is σ = 190093980. Its totient is φ = 190093978.

The previous prime is 190093973. The next prime is 190094027. The reversal of 190093979 is 979390091.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190093979 - 2⁴ = 190093963 is a prime.

It is a super-2 number, since 2×190093979² = 72271441704104882, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (190093973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95046989 + 95046990.

It is an arithmetic number, because the mean of its divisors is an integer number (95046990).

Almost surely, 2^190093979 is an apocalyptic number.

190093979 is a deficient number, since it is larger than the sum of its proper divisors (1).

190093979 is an equidigital number, since it uses as much as digits as its factorization.

190093979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 190093979 is about 13787.4573072775. The cubic root of 190093979 is about 574.9844774638.

The spelling of 190093979 in words is "one hundred ninety million, ninety-three thousand, nine hundred seventy-nine".