36397890 has 32 divisors (see below), whose sum is σ = 97061760. Its totient is φ = 9706032.

The previous prime is 36397883. The next prime is 36397913. The reversal of 36397890 is 9879363.

It is a happy number.

36397890 is a `hidden beast` number, since 3 + 639 + 7 + 8 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 15 ways as a sum of consecutive naturals, for example, 67134 + ... + 67673.

It is an arithmetic number, because the mean of its divisors is an integer number (3033180).

Almost surely, 2^36397890 is an apocalyptic number.

36397890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

36397890 is an abundant number, since it is smaller than the sum of its proper divisors (60663870).

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

36397890 is a wasteful number, since it uses less digits than its factorization.

36397890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134823 (or 134817 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 36397890 is about 6033.0663845179. The cubic root of 36397890 is about 331.4047555044.

The spelling of 36397890 in words is "thirty-six million, three hundred ninety-seven thousand, eight hundred ninety".