76689390 has 32 divisors (see below), whose sum is σ = 184634496. Its totient is φ = 20386080.

The previous prime is 76689373. The next prime is 76689391. The reversal of 76689390 is 9398667.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76689391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6069 + ... + 13791.

It is an arithmetic number, because the mean of its divisors is an integer number (5769828).

Almost surely, 2^76689390 is an apocalyptic number.

76689390 is an abundant number, since it is smaller than the sum of its proper divisors (107945106).

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

76689390 is a wasteful number, since it uses less digits than its factorization.

76689390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 76689390 is about 8757.2478553482. The cubic root of 76689390 is about 424.8592659747.

The spelling of 76689390 in words is "seventy-six million, six hundred eighty-nine thousand, three hundred ninety".