5299978 has 4 divisors (see below), whose sum is σ = 7949970. Its totient is φ = 2649988.

The previous prime is 5299951. The next prime is 5299979. The reversal of 5299978 is 8799925.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4313929 + 986049 = 2077^2 + 993^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5299979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324993 + ... + 1324996.

Almost surely, 2^5299978 is an apocalyptic number.

5299978 is a deficient number, since it is larger than the sum of its proper divisors (2649992).

5299978 is a wasteful number, since it uses less digits than its factorization.

5299978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649991.

The product of its digits is 408240, while the sum is 49.

The square root of 5299978 is about 2302.1681085446. The cubic root of 5299978 is about 174.3510988853.

The spelling of 5299978 in words is "five million, two hundred ninety-nine thousand, nine hundred seventy-eight".