35722665 has 24 divisors (see below), whose sum is σ = 67549248. Its totient is φ = 17319840.

The previous prime is 35722663. The next prime is 35722667. The reversal of 35722665 is 56622753.

It is a happy number.

35722665 is a `hidden beast` number, since 3 + 572 + 26 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (35722663) and next prime (35722667).

It is not a de Polignac number, because 35722665 - 2¹ = 35722663 is a prime.

It is a super-2 number, since 2×35722665² = 2552217589404450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (35722663) 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, 35589 + ... + 36578.

It is an arithmetic number, because the mean of its divisors is an integer number (2814552).

Almost surely, 2^35722665 is an apocalyptic number.

It is an amenable number.

35722665 is a deficient number, since it is larger than the sum of its proper divisors (31826583).

35722665 is a wasteful number, since it uses less digits than its factorization.

35722665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72189 (or 72186 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 35722665 is about 5976.8440668968. The cubic root of 35722665 is about 329.3426307655.

The spelling of 35722665 in words is "thirty-five million, seven hundred twenty-two thousand, six hundred sixty-five".