36974721 has 8 divisors (see below), whose sum is σ = 56342464. Its totient is φ = 21128400.

The previous prime is 36974699. The next prime is 36974767. The reversal of 36974721 is 12747963.

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

It is not a de Polignac number, because 36974721 - 2¹³ = 36966529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36974721.

It is not an unprimeable number, because it can be changed into a prime (36974521) 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, 880330 + ... + 880371.

It is an arithmetic number, because the mean of its divisors is an integer number (7042808).

Almost surely, 2^36974721 is an apocalyptic number.

It is an amenable number.

36974721 is a deficient number, since it is larger than the sum of its proper divisors (19367743).

36974721 is a wasteful number, since it uses less digits than its factorization.

36974721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760711.

The product of its digits is 63504, while the sum is 39.

The square root of 36974721 is about 6080.6842542595. The cubic root of 36974721 is about 333.1462802753.

The spelling of 36974721 in words is "thirty-six million, nine hundred seventy-four thousand, seven hundred twenty-one".