87777441 has 12 divisors (see below), whose sum is σ = 126880000. Its totient is φ = 58476600.

The previous prime is 87777439. The next prime is 87777451. The reversal of 87777441 is 14477778.

It is a happy number.

It is not a de Polignac number, because 87777441 - 2¹ = 87777439 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (87777451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15060 + ... + 20058.

Almost surely, 2^87777441 is an apocalyptic number.

It is an amenable number.

87777441 is a deficient number, since it is larger than the sum of its proper divisors (39102559).

87777441 is a wasteful number, since it uses less digits than its factorization.

87777441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6956 (or 6953 counting only the distinct ones).

The product of its digits is 307328, while the sum is 45.

The square root of 87777441 is about 9368.9615753295. The cubic root of 87777441 is about 444.4207267181.

The spelling of 87777441 in words is "eighty-seven million, seven hundred seventy-seven thousand, four hundred forty-one".