35640797 has 4 divisors (see below), whose sum is σ = 36869820. Its totient is φ = 34411776.

The previous prime is 35640757. The next prime is 35640799. The reversal of 35640797 is 79704653.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11689561 + 23951236 = 3419^2 + 4894^2 .

It is a cyclic number.

It is not a de Polignac number, because 35640797 - 2⁶ = 35640733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35640799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614468 + ... + 614525.

It is an arithmetic number, because the mean of its divisors is an integer number (9217455).

Almost surely, 2^35640797 is an apocalyptic number.

It is an amenable number.

35640797 is a deficient number, since it is larger than the sum of its proper divisors (1229023).

35640797 is a wasteful number, since it uses less digits than its factorization.

35640797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229022.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 35640797 is about 5969.9913735281. The cubic root of 35640797 is about 329.0908462089.

The spelling of 35640797 in words is "thirty-five million, six hundred forty thousand, seven hundred ninety-seven".