36609172 has 6 divisors (see below), whose sum is σ = 64066058. Its totient is φ = 18304584.

The previous prime is 36609149. The next prime is 36609173. The reversal of 36609172 is 27190663.

It can be written as a sum of positive squares in only one way, i.e., 23677956 + 12931216 = 4866^2 + 3596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36609173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4576143 + ... + 4576150.

Almost surely, 2^36609172 is an apocalyptic number.

It is an amenable number.

36609172 is a deficient number, since it is larger than the sum of its proper divisors (27456886).

36609172 is a wasteful number, since it uses less digits than its factorization.

36609172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9152297 (or 9152295 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 36609172 is about 6050.5513798331. The cubic root of 36609172 is about 332.0447634035.

The spelling of 36609172 in words is "thirty-six million, six hundred nine thousand, one hundred seventy-two".