36778890 has 16 divisors (see below), whose sum is σ = 88269408. Its totient is φ = 9807696.

The previous prime is 36778879. The next prime is 36778891. The reversal of 36778890 is 9887763.

It is not an unprimeable number, because it can be changed into a prime (36778891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612952 + ... + 613011.

It is an arithmetic number, because the mean of its divisors is an integer number (5516838).

Almost surely, 2^36778890 is an apocalyptic number.

36778890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

36778890 is an abundant number, since it is smaller than the sum of its proper divisors (51490518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36778890 is a wasteful number, since it uses less digits than its factorization.

36778890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225973.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 36778890 is about 6064.5601654201. The cubic root of 36778890 is about 332.5570859454.

The spelling of 36778890 in words is "thirty-six million, seven hundred seventy-eight thousand, eight hundred ninety".