36778751 has 2 divisors, whose sum is σ = 36778752. Its totient is φ = 36778750.

The previous prime is 36778747. The next prime is 36778759. The reversal of 36778751 is 15787763.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36778751 - 2² = 36778747 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36778759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18389375 + 18389376.

It is an arithmetic number, because the mean of its divisors is an integer number (18389376).

Almost surely, 2^36778751 is an apocalyptic number.

36778751 is a deficient number, since it is larger than the sum of its proper divisors (1).

36778751 is an equidigital number, since it uses as much as digits as its factorization.

36778751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 44.

The square root of 36778751 is about 6064.5487053861. The cubic root of 36778751 is about 332.5566669959.

It can be divided in two parts, 3 and 6778751, that multiplied together give a triangular number (20336253 = T₆₃₇₇).

The spelling of 36778751 in words is "thirty-six million, seven hundred seventy-eight thousand, seven hundred fifty-one".