35964561 has 4 divisors (see below), whose sum is σ = 47952752. Its totient is φ = 23976372.

The previous prime is 35964499. The next prime is 35964569. The reversal of 35964561 is 16546953.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16546953 = 3 ⋅5515651.

It is not a de Polignac number, because 35964561 - 2⁶ = 35964497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35964569) 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, 5994091 + ... + 5994096.

It is an arithmetic number, because the mean of its divisors is an integer number (11988188).

Almost surely, 2^35964561 is an apocalyptic number.

It is an amenable number.

35964561 is a deficient number, since it is larger than the sum of its proper divisors (11988191).

35964561 is a wasteful number, since it uses less digits than its factorization.

35964561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11988190.

The product of its digits is 97200, while the sum is 39.

The square root of 35964561 is about 5997.0460228349. The cubic root of 35964561 is about 330.0843402426.

The spelling of 35964561 in words is "thirty-five million, nine hundred sixty-four thousand, five hundred sixty-one".