87261363 has 12 divisors (see below), whose sum is σ = 144050608. Its totient is φ = 49863600.

The previous prime is 87261337. The next prime is 87261409. The reversal of 87261363 is 36316278.

It is a happy number.

It is not a de Polignac number, because 87261363 - 2⁶ = 87261299 is a prime.

It is a super-2 number, since 2×87261363² = 15229090945235538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87261263) 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, 692488 + ... + 692613.

Almost surely, 2^87261363 is an apocalyptic number.

87261363 is a deficient number, since it is larger than the sum of its proper divisors (56789245).

87261363 is a wasteful number, since it uses less digits than its factorization.

87261363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385114 (or 1385111 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 87261363 is about 9341.3790737771. The cubic root of 87261363 is about 443.5480396056.

The spelling of 87261363 in words is "eighty-seven million, two hundred sixty-one thousand, three hundred sixty-three".