74087761 has 8 divisors (see below), whose sum is σ = 84337344. Its totient is φ = 64423920.

The previous prime is 74087759. The next prime is 74087777. The reversal of 74087761 is 16778047.

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

It is not a de Polignac number, because 74087761 - 2¹ = 74087759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74087791) 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, 146166 + ... + 146671.

It is an arithmetic number, because the mean of its divisors is an integer number (10542168).

Almost surely, 2^74087761 is an apocalyptic number.

It is an amenable number.

74087761 is a deficient number, since it is larger than the sum of its proper divisors (10249583).

74087761 is a wasteful number, since it uses less digits than its factorization.

74087761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292871.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 74087761 is about 8607.4247600545. The cubic root of 74087761 is about 419.9995483744. Note that the first 3 decimals are identical.

The spelling of 74087761 in words is "seventy-four million, eighty-seven thousand, seven hundred sixty-one".