190697429 has 4 divisors (see below), whose sum is σ = 205366476. Its totient is φ = 176028384.

The previous prime is 190697411. The next prime is 190697431. The reversal of 190697429 is 924796091.

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

It can be written as a sum of positive squares in 2 ways, for example, as 124925329 + 65772100 = 11177^2 + 8110^2 .

It is a cyclic number.

It is not a de Polignac number, because 190697429 - 2⁸ = 190697173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190697489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7334504 + ... + 7334529.

It is an arithmetic number, because the mean of its divisors is an integer number (51341619).

Almost surely, 2^190697429 is an apocalyptic number.

It is an amenable number.

190697429 is a deficient number, since it is larger than the sum of its proper divisors (14669047).

190697429 is a wasteful number, since it uses less digits than its factorization.

190697429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14669046.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 190697429 is about 13809.3239877990. The cubic root of 190697429 is about 575.5922608282.

The spelling of 190697429 in words is "one hundred ninety million, six hundred ninety-seven thousand, four hundred twenty-nine".