190906707 has 4 divisors (see below), whose sum is σ = 254542280. Its totient is φ = 127271136.

The previous prime is 190906687. The next prime is 190906721. The reversal of 190906707 is 707609091.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 190906707 - 2⁷ = 190906579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190906307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31817782 + ... + 31817787.

It is an arithmetic number, because the mean of its divisors is an integer number (63635570).

Almost surely, 2^190906707 is an apocalyptic number.

190906707 is a deficient number, since it is larger than the sum of its proper divisors (63635573).

190906707 is an equidigital number, since it uses as much as digits as its factorization.

190906707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63635572.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 190906707 is about 13816.8993265494. The cubic root of 190906707 is about 575.8027421815.

The spelling of 190906707 in words is "one hundred ninety million, nine hundred six thousand, seven hundred seven".