77473000 has 64 divisors (see below), whose sum is σ = 197795520. Its totient is φ = 28168000.

The previous prime is 77472991. The next prime is 77473021. The reversal of 77473000 is 37477.

It is a self number, because there is not a number n which added to its sum of digits gives 77473000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7479 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (3090555).

Almost surely, 2^77473000 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 77473000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98897760).

77473000 is an abundant number, since it is smaller than the sum of its proper divisors (120322520).

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

77473000 is a wasteful number, since it uses less digits than its factorization.

77473000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075 (or 7061 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 28.

The square root of 77473000 is about 8801.8748002911. The cubic root of 77473000 is about 426.3014316901.

The spelling of 77473000 in words is "seventy-seven million, four hundred seventy-three thousand".