87393071 has 8 divisors (see below), whose sum is σ = 89633280. Its totient is φ = 85162392.

The previous prime is 87393049. The next prime is 87393079. The reversal of 87393071 is 17039378.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87393071 - 2¹⁰ = 87392047 is a prime.

It is a super-2 number, since 2×87393071² = 15275097717622082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87393079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18476 + ... + 22718.

It is an arithmetic number, because the mean of its divisors is an integer number (11204160).

Almost surely, 2^87393071 is an apocalyptic number.

87393071 is a deficient number, since it is larger than the sum of its proper divisors (2240209).

87393071 is a wasteful number, since it uses less digits than its factorization.

87393071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4765.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 87393071 is about 9348.4261242201. The cubic root of 87393071 is about 443.7710839417.

The spelling of 87393071 in words is "eighty-seven million, three hundred ninety-three thousand, seventy-one".