36720623 has 4 divisors (see below), whose sum is σ = 37268760. Its totient is φ = 36172488.

The previous prime is 36720617. The next prime is 36720631. The reversal of 36720623 is 32602763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32602763 = 257 ⋅126859.

It is a cyclic number.

It is not a de Polignac number, because 36720623 - 2¹² = 36716527 is a prime.

It is a super-3 number, since 3×36720623³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36720023) 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, 273968 + ... + 274101.

It is an arithmetic number, because the mean of its divisors is an integer number (9317190).

Almost surely, 2^36720623 is an apocalyptic number.

36720623 is a deficient number, since it is larger than the sum of its proper divisors (548137).

36720623 is an equidigital number, since it uses as much as digits as its factorization.

36720623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548136.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 36720623 is about 6059.7543679592. The cubic root of 36720623 is about 332.3813751371.

The spelling of 36720623 in words is "thirty-six million, seven hundred twenty thousand, six hundred twenty-three".