35820961 has 6 divisors (see below), whose sum is σ = 39373586. Its totient is φ = 32564400.

The previous prime is 35820931. The next prime is 35820971. The reversal of 35820961 is 16902853.

It can be written as a sum of positive squares in only one way, i.e., 30735936 + 5085025 = 5544^2 + 2255^2 .

It is a de Polignac number, because none of the positive numbers 2^k-35820961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35820901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147900 + ... + 148141.

Almost surely, 2^35820961 is an apocalyptic number.

It is an amenable number.

35820961 is a deficient number, since it is larger than the sum of its proper divisors (3552625).

35820961 is a wasteful number, since it uses less digits than its factorization.

35820961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296063 (or 296052 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 35820961 is about 5985.0614867351. The cubic root of 35820961 is about 329.6444318351.

The spelling of 35820961 in words is "thirty-five million, eight hundred twenty thousand, nine hundred sixty-one".