77448954 has 48 divisors (see below), whose sum is σ = 172023264. Its totient is φ = 23226720.

The previous prime is 77448949. The next prime is 77448989. The reversal of 77448954 is 45984477.

Its product of digits (1128960) is a multiple of the sum of its prime divisors (1120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77184 + ... + 78180.

It is an arithmetic number, because the mean of its divisors is an integer number (3583818).

Almost surely, 2^77448954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77448954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86011632).

77448954 is an abundant number, since it is smaller than the sum of its proper divisors (94574310).

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

77448954 is a wasteful number, since it uses less digits than its factorization.

77448954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1120 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 77448954 is about 8800.5087352948. The cubic root of 77448954 is about 426.2573221080.

The spelling of 77448954 in words is "seventy-seven million, four hundred forty-eight thousand, nine hundred fifty-four".