189387694 has 8 divisors (see below), whose sum is σ = 288321768. Its totient is φ = 93280440.

The previous prime is 189387691. The next prime is 189387697. The reversal of 189387694 is 496783981.

It is an interprime number because it is at equal distance from previous prime (189387691) and next prime (189387697).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189387691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706537 + ... + 706804.

It is an arithmetic number, because the mean of its divisors is an integer number (36040221).

Almost surely, 2^189387694 is an apocalyptic number.

189387694 is a deficient number, since it is larger than the sum of its proper divisors (98934074).

189387694 is a wasteful number, since it uses less digits than its factorization.

189387694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413410.

The product of its digits is 2612736, while the sum is 55.

The square root of 189387694 is about 13761.8201557788. The cubic root of 189387694 is about 574.2714846826.

The spelling of 189387694 in words is "one hundred eighty-nine million, three hundred eighty-seven thousand, six hundred ninety-four".