77351890 has 96 divisors (see below), whose sum is σ = 179656704. Its totient is φ = 23708160.

The previous prime is 77351863. The next prime is 77351899. The reversal of 77351890 is 9815377.

It is not an unprimeable number, because it can be changed into a prime (77351899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 609007 + ... + 609133.

It is an arithmetic number, because the mean of its divisors is an integer number (1871424).

Almost surely, 2^77351890 is an apocalyptic number.

77351890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77351890 is an abundant number, since it is smaller than the sum of its proper divisors (102304814).

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

77351890 is a wasteful number, since it uses less digits than its factorization.

77351890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 77351890 is about 8794.9923251814. The cubic root of 77351890 is about 426.0791766548.

The spelling of 77351890 in words is "seventy-seven million, three hundred fifty-one thousand, eight hundred ninety".