35640997 has 8 divisors (see below), whose sum is σ = 40865216. Its totient is φ = 30449952.

The previous prime is 35640977. The next prime is 35641033. The reversal of 35640997 is 79904653.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35640997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35640977) 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, 5943 + ... + 10324.

It is an arithmetic number, because the mean of its divisors is an integer number (5108152).

Almost surely, 2^35640997 is an apocalyptic number.

It is an amenable number.

35640997 is a deficient number, since it is larger than the sum of its proper divisors (5224219).

35640997 is a wasteful number, since it uses less digits than its factorization.

35640997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16587.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 35640997 is about 5970.0081239476. The cubic root of 35640997 is about 329.0914617774.

The spelling of 35640997 in words is "thirty-five million, six hundred forty thousand, nine hundred ninety-seven".