77894500 has 48 divisors (see below), whose sum is σ = 174125952. Its totient is φ = 30424800.

The previous prime is 77894497. The next prime is 77894503. The reversal of 77894500 is 549877.

It is an interprime number because it is at equal distance from previous prime (77894497) and next prime (77894503).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (77894503) 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 15 ways as a sum of consecutive naturals, for example, 19689 + ... + 23311.

It is an arithmetic number, because the mean of its divisors is an integer number (3627624).

Almost surely, 2^77894500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77894500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87062976).

77894500 is an abundant number, since it is smaller than the sum of its proper divisors (96231452).

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

77894500 is a wasteful number, since it uses less digits than its factorization.

77894500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685 (or 3673 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 77894500 is about 8825.7860839701. The cubic root of 77894500 is about 427.0731464290.

The spelling of 77894500 in words is "seventy-seven million, eight hundred ninety-four thousand, five hundred".