235685961 has 12 divisors (see below), whose sum is σ = 389068992. Its totient is φ = 134677656.

The previous prime is 235685959. The next prime is 235685981. The reversal of 235685961 is 169586532.

235685961 is a `hidden beast` number, since 2 + 3 + 56 + 8 + 596 + 1 = 666.

It is not a de Polignac number, because 235685961 - 2¹ = 235685959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (235685911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1870461 + ... + 1870586.

It is an arithmetic number, because the mean of its divisors is an integer number (32422416).

Almost surely, 2^235685961 is an apocalyptic number.

235685961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

235685961 is a deficient number, since it is larger than the sum of its proper divisors (153383031).

235685961 is a wasteful number, since it uses less digits than its factorization.

235685961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741060 (or 3741057 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 235685961 is about 15352.0669943822. The cubic root of 235685961 is about 617.7004313654.

The spelling of 235685961 in words is "two hundred thirty-five million, six hundred eighty-five thousand, nine hundred sixty-one".