89749810 has 8 divisors (see below), whose sum is σ = 161549676. Its totient is φ = 35899920.

The previous prime is 89749799. The next prime is 89749811. The reversal of 89749810 is 1894798.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83594449 + 6155361 = 9143^2 + 2481^2 .

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

It is a super-2 number, since 2×89749810² = 16110056790072200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89749811) 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, 4487481 + ... + 4487500.

Almost surely, 2^89749810 is an apocalyptic number.

89749810 is a deficient number, since it is larger than the sum of its proper divisors (71799866).

89749810 is a wasteful number, since it uses less digits than its factorization.

89749810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8974988.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 89749810 is about 9473.6376329264. The cubic root of 89749810 is about 447.7248290258.

The spelling of 89749810 in words is "eighty-nine million, seven hundred forty-nine thousand, eight hundred ten".