35697640 has 32 divisors (see below), whose sum is σ = 87622560. Its totient is φ = 12980800.

The previous prime is 35697619. The next prime is 35697659. The reversal of 35697640 is 4679653.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 35697593 and 35697602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40126 + ... + 41005.

It is an arithmetic number, because the mean of its divisors is an integer number (2738205).

Almost surely, 2^35697640 is an apocalyptic number.

It is an amenable number.

35697640 is an abundant number, since it is smaller than the sum of its proper divisors (51924920).

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

35697640 is a wasteful number, since it uses less digits than its factorization.

35697640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81153 (or 81149 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 35697640 is about 5974.7502039834. The cubic root of 35697640 is about 329.2657073833.

The spelling of 35697640 in words is "thirty-five million, six hundred ninety-seven thousand, six hundred forty".