35897640 has 32 divisors (see below), whose sum is σ = 107693280. Its totient is φ = 9572672.

The previous prime is 35897639. The next prime is 35897651. The reversal of 35897640 is 4679853.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 35897592 and 35897601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149454 + ... + 149693.

It is an arithmetic number, because the mean of its divisors is an integer number (3365415).

Almost surely, 2^35897640 is an apocalyptic number.

35897640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

35897640 is an abundant number, since it is smaller than the sum of its proper divisors (71795640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

35897640 is a wasteful number, since it uses less digits than its factorization.

35897640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299161 (or 299157 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 35897640 is about 5991.4639279562. The cubic root of 35897640 is about 329.8794784866.

The spelling of 35897640 in words is "thirty-five million, eight hundred ninety-seven thousand, six hundred forty".