36779509 has 8 divisors (see below), whose sum is σ = 40356792. Its totient is φ = 33309120.

The previous prime is 36779503. The next prime is 36779513. The reversal of 36779509 is 90597763.

It can be written as a sum of positive squares in 4 ways, for example, as 418609 + 36360900 = 647^2 + 6030^2 .

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

It is not a de Polignac number, because 36779509 - 2¹⁹ = 36255221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36779503) 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, 26002 + ... + 27379.

It is an arithmetic number, because the mean of its divisors is an integer number (5044599).

Almost surely, 2^36779509 is an apocalyptic number.

It is an amenable number.

36779509 is a deficient number, since it is larger than the sum of its proper divisors (3577283).

36779509 is a wasteful number, since it uses less digits than its factorization.

36779509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53447.

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 36779509 is about 6064.6111994092. The cubic root of 36779509 is about 332.5589516142.

The spelling of 36779509 in words is "thirty-six million, seven hundred seventy-nine thousand, five hundred nine".