74087773 has 8 divisors (see below), whose sum is σ = 75324600. Its totient is φ = 72857088.

The previous prime is 74087759. The next prime is 74087777. The reversal of 74087773 is 37778047.

It can be written as a sum of positive squares in 4 ways, for example, as 5579044 + 68508729 = 2362^2 + 8277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74087773 - 2⁹ = 74087261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74087777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27093 + ... + 29701.

It is an arithmetic number, because the mean of its divisors is an integer number (9415575).

Almost surely, 2^74087773 is an apocalyptic number.

74087773 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

74087773 is a deficient number, since it is larger than the sum of its proper divisors (1236827).

74087773 is a wasteful number, since it uses less digits than its factorization.

74087773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071.

The product of its (nonzero) digits is 230496, while the sum is 43.

The square root of 74087773 is about 8607.4254571271. The cubic root of 74087773 is about 419.9995710502. Note that the first 3 decimals are identical.

The spelling of 74087773 in words is "seventy-four million, eighty-seven thousand, seven hundred seventy-three".