87779461 has 8 divisors (see below), whose sum is σ = 109439424. Its totient is φ = 68399520.

The previous prime is 87779443. The next prime is 87779467. The reversal of 87779461 is 16497778.

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

It is not a de Polignac number, because 87779461 - 2¹¹ = 87777413 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 (87779467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569920 + ... + 570073.

It is an arithmetic number, because the mean of its divisors is an integer number (13679928).

Almost surely, 2^87779461 is an apocalyptic number.

It is an amenable number.

87779461 is a deficient number, since it is larger than the sum of its proper divisors (21659963).

87779461 is a wasteful number, since it uses less digits than its factorization.

87779461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140011.

The product of its digits is 592704, while the sum is 49.

The square root of 87779461 is about 9369.0693774782. The cubic root of 87779461 is about 444.4241358058.

The spelling of 87779461 in words is "eighty-seven million, seven hundred seventy-nine thousand, four hundred sixty-one".