74087770 has 8 divisors (see below), whose sum is σ = 133358004. Its totient is φ = 29635104.

The previous prime is 74087759. The next prime is 74087777. The reversal of 74087770 is 7778047.

It can be written as a sum of positive squares in 2 ways, for example, as 72369049 + 1718721 = 8507^2 + 1311^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 3704379 + ... + 3704398.

Almost surely, 2^74087770 is an apocalyptic number.

74087770 is a deficient number, since it is larger than the sum of its proper divisors (59270234).

74087770 is a wasteful number, since it uses less digits than its factorization.

74087770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7408784.

The product of its (nonzero) digits is 76832, while the sum is 40.

The square root of 74087770 is about 8607.4252828590. The cubic root of 74087770 is about 419.9995653813. Note that the first 3 decimals are identical.

The spelling of 74087770 in words is "seventy-four million, eighty-seven thousand, seven hundred seventy".