35604981 has 8 divisors (see below), whose sum is σ = 52748160. Its totient is φ = 23736636.

The previous prime is 35604979. The next prime is 35604983. The reversal of 35604981 is 18940653.

35604981 is a `hidden beast` number, since 3 + 560 + 4 + 98 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (35604979) and next prime (35604983).

It is not a de Polignac number, because 35604981 - 2¹ = 35604979 is a prime.

It is a super-2 number, since 2×35604981² = 2535429344020722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35604983) 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, 659325 + ... + 659378.

It is an arithmetic number, because the mean of its divisors is an integer number (6593520).

Almost surely, 2^35604981 is an apocalyptic number.

It is an amenable number.

35604981 is a deficient number, since it is larger than the sum of its proper divisors (17143179).

35604981 is a wasteful number, since it uses less digits than its factorization.

35604981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318712 (or 1318706 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 35604981 is about 5966.9909502194. The cubic root of 35604981 is about 328.9805730654.

It can be divided in two parts, 35604 and 981, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 35604981 in words is "thirty-five million, six hundred four thousand, nine hundred eighty-one".