35640397 has 8 divisors (see below), whose sum is σ = 38545920. Its totient is φ = 32758320.

The previous prime is 35640389. The next prime is 35640401. The reversal of 35640397 is 79304653.

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

It is a cyclic number.

It is not a de Polignac number, because 35640397 - 2³ = 35640389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35640337) 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, 2629 + ... + 8842.

It is an arithmetic number, because the mean of its divisors is an integer number (4818240).

Almost surely, 2^35640397 is an apocalyptic number.

It is an amenable number.

35640397 is a deficient number, since it is larger than the sum of its proper divisors (2905523).

35640397 is a wasteful number, since it uses less digits than its factorization.

35640397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 35640397 is about 5969.9578725482. The cubic root of 35640397 is about 329.0896150652.

The spelling of 35640397 in words is "thirty-five million, six hundred forty thousand, three hundred ninety-seven".