36697728 has 64 divisors (see below), whose sum is σ = 98140320. Its totient is φ = 12149760.

The previous prime is 36697711. The next prime is 36697729. The reversal of 36697728 is 82779663.

36697728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (36697729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86958 + ... + 87378.

Almost surely, 2^36697728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36697728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49070160).

36697728 is an abundant number, since it is smaller than the sum of its proper divisors (61442592).

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

36697728 is a wasteful number, since it uses less digits than its factorization.

36697728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 653 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 36697728 is about 6057.8649704331. The cubic root of 36697728 is about 332.3122817769.

The spelling of 36697728 in words is "thirty-six million, six hundred ninety-seven thousand, seven hundred twenty-eight".