87533001 has 8 divisors (see below), whose sum is σ = 129678560. Its totient is φ = 58355316.

The previous prime is 87532997. The next prime is 87533003. The reversal of 87533001 is 10033578.

It is not a de Polignac number, because 87533001 - 2² = 87532997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3241963 = 87533001 / (8 + 7 + 5 + 3 + 3 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87533003) 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, 1620955 + ... + 1621008.

It is an arithmetic number, because the mean of its divisors is an integer number (16209820).

Almost surely, 2^87533001 is an apocalyptic number.

It is an amenable number.

87533001 is a deficient number, since it is larger than the sum of its proper divisors (42145559).

87533001 is a wasteful number, since it uses less digits than its factorization.

87533001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241972 (or 3241966 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 87533001 is about 9355.9072782921. The cubic root of 87533001 is about 444.0078066560.

Adding to 87533001 its reverse (10033578), we get a palindrome (97566579).

The spelling of 87533001 in words is "eighty-seven million, five hundred thirty-three thousand, one".