10349978 has 4 divisors (see below), whose sum is σ = 15524970. Its totient is φ = 5174988.

The previous prime is 10349953. The next prime is 10349981. The reversal of 10349978 is 87994301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87994301 = 19 ⋅4631279.

It can be written as a sum of positive squares in only one way, i.e., 9102289 + 1247689 = 3017^2 + 1117^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2587493 + ... + 2587496.

Almost surely, 2^10349978 is an apocalyptic number.

10349978 is a deficient number, since it is larger than the sum of its proper divisors (5174992).

10349978 is an equidigital number, since it uses as much as digits as its factorization.

10349978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174991.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 10349978 is about 3217.1381692430. The cubic root of 10349978 is about 217.9280547035.

The spelling of 10349978 in words is "ten million, three hundred forty-nine thousand, nine hundred seventy-eight".