87450973 has 4 divisors (see below), whose sum is σ = 89311680. Its totient is φ = 85590268.

The previous prime is 87450971. The next prime is 87450997. The reversal of 87450973 is 37905478.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87450973 - 2¹ = 87450971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87450971) 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, 930283 + ... + 930376.

It is an arithmetic number, because the mean of its divisors is an integer number (22327920).

Almost surely, 2^87450973 is an apocalyptic number.

It is an amenable number.

87450973 is a deficient number, since it is larger than the sum of its proper divisors (1860707).

87450973 is a wasteful number, since it uses less digits than its factorization.

87450973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860706.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 87450973 is about 9351.5224963639. The cubic root of 87450973 is about 443.8690686764.

The spelling of 87450973 in words is "eighty-seven million, four hundred fifty thousand, nine hundred seventy-three".