87862149 has 12 divisors (see below), whose sum is σ = 127012236. Its totient is φ = 58528512.

The previous prime is 87862127. The next prime is 87862163. The reversal of 87862149 is 94126878.

It can be written as a sum of positive squares in 2 ways, for example, as 32285124 + 55577025 = 5682^2 + 7455^2 .

It is not a de Polignac number, because 87862149 - 2⁹ = 87861637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87862109) 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, 11317 + ... + 17429.

It is an arithmetic number, because the mean of its divisors is an integer number (10584353).

Almost surely, 2^87862149 is an apocalyptic number.

It is an amenable number.

87862149 is a deficient number, since it is larger than the sum of its proper divisors (39150087).

87862149 is a wasteful number, since it uses less digits than its factorization.

87862149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7716 (or 7713 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 87862149 is about 9373.4811569662. The cubic root of 87862149 is about 444.5636407635.

The spelling of 87862149 in words is "eighty-seven million, eight hundred sixty-two thousand, one hundred forty-nine".