36557997 has 8 divisors (see below), whose sum is σ = 55707456. Its totient is φ = 20890272.

The previous prime is 36557987. The next prime is 36557999. The reversal of 36557997 is 79975563.

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

It is not a de Polignac number, because 36557997 - 2⁴ = 36557981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36557999) 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, 870408 + ... + 870449.

It is an arithmetic number, because the mean of its divisors is an integer number (6963432).

Almost surely, 2^36557997 is an apocalyptic number.

It is an amenable number.

36557997 is a deficient number, since it is larger than the sum of its proper divisors (19149459).

36557997 is a wasteful number, since it uses less digits than its factorization.

36557997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740867.

The product of its digits is 1786050, while the sum is 51.

The square root of 36557997 is about 6046.3209474853. The cubic root of 36557997 is about 331.8899723704.

The spelling of 36557997 in words is "thirty-six million, five hundred fifty-seven thousand, nine hundred ninety-seven".