87703491 has 4 divisors (see below), whose sum is σ = 116937992. Its totient is φ = 58468992.

The previous prime is 87703477. The next prime is 87703501. The reversal of 87703491 is 19430778.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87703491 - 2¹⁹ = 87179203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87703591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14617246 + ... + 14617251.

It is an arithmetic number, because the mean of its divisors is an integer number (29234498).

Almost surely, 2^87703491 is an apocalyptic number.

87703491 is a deficient number, since it is larger than the sum of its proper divisors (29234501).

87703491 is a wasteful number, since it uses less digits than its factorization.

87703491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29234500.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 87703491 is about 9365.0142018045. The cubic root of 87703491 is about 444.2958877088.

The spelling of 87703491 in words is "eighty-seven million, seven hundred three thousand, four hundred ninety-one".