196889402 has 4 divisors (see below), whose sum is σ = 295334106. Its totient is φ = 98444700.

The previous prime is 196889387. The next prime is 196889411. The reversal of 196889402 is 204988691.

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

It can be written as a sum of positive squares in only one way, i.e., 146918641 + 49970761 = 12121^2 + 7069^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49222349 + ... + 49222352.

Almost surely, 2^196889402 is an apocalyptic number.

196889402 is a deficient number, since it is larger than the sum of its proper divisors (98444704).

196889402 is an equidigital number, since it uses as much as digits as its factorization.

196889402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98444703.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 196889402 is about 14031.7284038710. The cubic root of 196889402 is about 581.7558779032.

The spelling of 196889402 in words is "one hundred ninety-six million, eight hundred eighty-nine thousand, four hundred two".