201695634 has 48 divisors (see below), whose sum is σ = 508876992. Its totient is φ = 56538144.

The previous prime is 201695617. The next prime is 201695639. The reversal of 201695634 is 436596102.

It is a happy number.

201695634 is a `hidden beast` number, since 2 + 0 + 16 + 9 + 5 + 634 = 666.

It is a super-2 number, since 2×201695634² = 81362257549323912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201695639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8424 + ... + 21779.

It is an arithmetic number, because the mean of its divisors is an integer number (10601604).

Almost surely, 2^201695634 is an apocalyptic number.

201695634 is an abundant number, since it is smaller than the sum of its proper divisors (307181358).

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

201695634 is a wasteful number, since it uses less digits than its factorization.

201695634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30271 (or 30268 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 201695634 is about 14201.9588085588. The cubic root of 201695634 is about 586.4515868926.

The spelling of 201695634 in words is "two hundred one million, six hundred ninety-five thousand, six hundred thirty-four".