89621305 has 8 divisors (see below), whose sum is σ = 107737344. Its totient is φ = 71569200.

The previous prime is 89621303. The next prime is 89621333. The reversal of 89621305 is 50312698.

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

It is not a de Polignac number, because 89621305 - 2¹ = 89621303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89621303) 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, 12841 + ... + 18550.

It is an arithmetic number, because the mean of its divisors is an integer number (13467168).

Almost surely, 2^89621305 is an apocalyptic number.

It is an amenable number.

89621305 is a deficient number, since it is larger than the sum of its proper divisors (18116039).

89621305 is a wasteful number, since it uses less digits than its factorization.

89621305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31967.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 89621305 is about 9466.8529617820. The cubic root of 89621305 is about 447.5110407896.

It can be divided in two parts, 896 and 21305, that added together give a square (22201 = 149²).

The spelling of 89621305 in words is "eighty-nine million, six hundred twenty-one thousand, three hundred five".