77303000 has 64 divisors (see below), whose sum is σ = 188809920. Its totient is φ = 29568000.

The previous prime is 77302993. The next prime is 77303033. The reversal of 77303000 is 30377.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21320 + ... + 24680.

It is an arithmetic number, because the mean of its divisors is an integer number (2950155).

Almost surely, 2^77303000 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 77303000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94404960).

77303000 is an abundant number, since it is smaller than the sum of its proper divisors (111506920).

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

77303000 is a wasteful number, since it uses less digits than its factorization.

77303000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405 (or 3391 counting only the distinct ones).

The product of its (nonzero) digits is 441, while the sum is 20.

The square root of 77303000 is about 8792.2124633109. The cubic root of 77303000 is about 425.9893904357.

Adding to 77303000 its reverse (30377), we get a palindrome (77333377).

The spelling of 77303000 in words is "seventy-seven million, three hundred three thousand".