77873334 has 64 divisors (see below), whose sum is σ = 196922880. Its totient is φ = 19941120.

The previous prime is 77873329. The next prime is 77873351. The reversal of 77873334 is 43337877.

It is a super-2 number, since 2×77873334² = 12128512296551112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32572 + ... + 34880.

It is an arithmetic number, because the mean of its divisors is an integer number (3076920).

Almost surely, 2^77873334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77873334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98461440).

77873334 is an abundant number, since it is smaller than the sum of its proper divisors (119049546).

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

77873334 is a wasteful number, since it uses less digits than its factorization.

77873334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405.

The product of its digits is 296352, while the sum is 42.

The square root of 77873334 is about 8824.5869025128. The cubic root of 77873334 is about 427.0344605607.

The spelling of 77873334 in words is "seventy-seven million, eight hundred seventy-three thousand, three hundred thirty-four".