87454805 has 8 divisors (see below), whose sum is σ = 105651000. Its totient is φ = 69493696.

The previous prime is 87454799. The next prime is 87454831. The reversal of 87454805 is 50845478.

It can be written as a sum of positive squares in 4 ways, for example, as 1002001 + 86452804 = 1001^2 + 9298^2 .

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 87454805 - 2²² = 83260501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57950 + ... + 59439.

It is an arithmetic number, because the mean of its divisors is an integer number (13206375).

Almost surely, 2^87454805 is an apocalyptic number.

It is an amenable number.

87454805 is a deficient number, since it is larger than the sum of its proper divisors (18196195).

87454805 is a wasteful number, since it uses less digits than its factorization.

87454805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117543.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 87454805 is about 9351.7273805431. The cubic root of 87454805 is about 443.8755518572.

The spelling of 87454805 in words is "eighty-seven million, four hundred fifty-four thousand, eight hundred five".