87736269 has 16 divisors (see below), whose sum is σ = 126887040. Its totient is φ = 53706240.

The previous prime is 87736267. The next prime is 87736279. The reversal of 87736269 is 96263778.

It is not a de Polignac number, because 87736269 - 2¹ = 87736267 is a prime.

It is a super-2 number, since 2×87736269² = 15395305796080722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87736261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18889 + ... + 23070.

It is an arithmetic number, because the mean of its divisors is an integer number (7930440).

Almost surely, 2^87736269 is an apocalyptic number.

It is an amenable number.

87736269 is a deficient number, since it is larger than the sum of its proper divisors (39150771).

87736269 is a wasteful number, since it uses less digits than its factorization.

87736269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42020.

The product of its digits is 762048, while the sum is 48.

The square root of 87736269 is about 9366.7640623643. The cubic root of 87736269 is about 444.3512306854.

The spelling of 87736269 in words is "eighty-seven million, seven hundred thirty-six thousand, two hundred sixty-nine".