36990197 has 4 divisors (see below), whose sum is σ = 37029036. Its totient is φ = 36951360.

The previous prime is 36990193. The next prime is 36990203. The reversal of 36990197 is 79109963.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79109963 = 499 ⋅158537.

It can be written as a sum of positive squares in 2 ways, for example, as 35450116 + 1540081 = 5954^2 + 1241^2 .

It is a cyclic number.

It is not a de Polignac number, because 36990197 - 2² = 36990193 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 (36990193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17954 + ... + 19907.

It is an arithmetic number, because the mean of its divisors is an integer number (9257259).

Almost surely, 2^36990197 is an apocalyptic number.

It is an amenable number.

36990197 is a deficient number, since it is larger than the sum of its proper divisors (38839).

36990197 is an equidigital number, since it uses as much as digits as its factorization.

36990197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38838.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 36990197 is about 6081.9566752814. The cubic root of 36990197 is about 333.1927539429.

The spelling of 36990197 in words is "thirty-six million, nine hundred ninety thousand, one hundred ninety-seven".