73780734 has 32 divisors (see below), whose sum is σ = 154690560. Its totient is φ = 23415392.

The previous prime is 73780723. The next prime is 73780747. The reversal of 73780734 is 43708737.

It is a junction number, because it is equal to n+sod(n) for n = 73780692 and 73780701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31864 + ... + 34100.

It is an arithmetic number, because the mean of its divisors is an integer number (4834080).

Almost surely, 2^73780734 is an apocalyptic number.

73780734 is an abundant number, since it is smaller than the sum of its proper divisors (80909826).

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

73780734 is a wasteful number, since it uses less digits than its factorization.

73780734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 73780734 is about 8589.5712349337. The cubic root of 73780734 is about 419.4185718871.

The spelling of 73780734 in words is "seventy-three million, seven hundred eighty thousand, seven hundred thirty-four".