36397949 has 4 divisors (see below), whose sum is σ = 41597664. Its totient is φ = 31198236.

The previous prime is 36397943. The next prime is 36397961. The reversal of 36397949 is 94979363.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94979363 = 127 ⋅747869.

It is a cyclic number.

It is not a de Polignac number, because 36397949 - 2¹² = 36393853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36397897 and 36397906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36397943) 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, 2599847 + ... + 2599860.

It is an arithmetic number, because the mean of its divisors is an integer number (10399416).

Almost surely, 2^36397949 is an apocalyptic number.

It is an amenable number.

36397949 is a deficient number, since it is larger than the sum of its proper divisors (5199715).

36397949 is an equidigital number, since it uses as much as digits as its factorization.

36397949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199714.

The product of its digits is 1102248, while the sum is 50.

The square root of 36397949 is about 6033.0712742350. The cubic root of 36397949 is about 331.4049345704.

The spelling of 36397949 in words is "thirty-six million, three hundred ninety-seven thousand, nine hundred forty-nine".