187949696 has 64 divisors (see below), whose sum is σ = 422647200. Its totient is φ = 82467840.

The previous prime is 187949693. The next prime is 187949711. The reversal of 187949696 is 696949781.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (187949693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38531 + ... + 43133.

Almost surely, 2^187949696 is an apocalyptic number.

187949696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 187949696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211323600).

187949696 is an abundant number, since it is smaller than the sum of its proper divisors (234697504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

187949696 is a wasteful number, since it uses less digits than its factorization.

187949696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4657 (or 4645 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 59.

The square root of 187949696 is about 13709.4746799431. The cubic root of 187949696 is about 572.8143323193.

The spelling of 187949696 in words is "one hundred eighty-seven million, nine hundred forty-nine thousand, six hundred ninety-six".