36783977 has 4 divisors (see below), whose sum is σ = 38052420. Its totient is φ = 35515536.

The previous prime is 36783973. The next prime is 36783979. The reversal of 36783977 is 77938763.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18627856 + 18156121 = 4316^2 + 4261^2 .

It is a cyclic number.

It is not a de Polignac number, because 36783977 - 2² = 36783973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36783973) 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, 634178 + ... + 634235.

It is an arithmetic number, because the mean of its divisors is an integer number (9513105).

Almost surely, 2^36783977 is an apocalyptic number.

It is an amenable number.

36783977 is a deficient number, since it is larger than the sum of its proper divisors (1268443).

36783977 is a wasteful number, since it uses less digits than its factorization.

36783977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268442.

The product of its digits is 1333584, while the sum is 50.

The square root of 36783977 is about 6064.9795547883. The cubic root of 36783977 is about 332.5724175655.

The spelling of 36783977 in words is "thirty-six million, seven hundred eighty-three thousand, nine hundred seventy-seven".