73807790 has 32 divisors (see below), whose sum is σ = 155542464. Its totient is φ = 24687360.

The previous prime is 73807781. The next prime is 73807793. The reversal of 73807790 is 9770837.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73807793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9989 + ... + 15728.

It is an arithmetic number, because the mean of its divisors is an integer number (4860702).

Almost surely, 2^73807790 is an apocalyptic number.

73807790 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73807790 is an abundant number, since it is smaller than the sum of its proper divisors (81734674).

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

73807790 is a wasteful number, since it uses less digits than its factorization.

73807790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25772.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 73807790 is about 8591.1460236688. The cubic root of 73807790 is about 419.4698336978.

The spelling of 73807790 in words is "seventy-three million, eight hundred seven thousand, seven hundred ninety".