714709978 has 4 divisors (see below), whose sum is σ = 1072064970. Its totient is φ = 357354988.

The previous prime is 714709949. The next prime is 714709979. The reversal of 714709978 is 879907417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 879907417 = 2153 ⋅408689.

It can be written as a sum of positive squares in only one way, i.e., 556629649 + 158080329 = 23593^2 + 12573^2 .

It is not an unprimeable number, because it can be changed into a prime (714709979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178677493 + ... + 178677496.

Almost surely, 2^714709978 is an apocalyptic number.

714709978 is a deficient number, since it is larger than the sum of its proper divisors (357354992).

714709978 is a wasteful number, since it uses less digits than its factorization.

714709978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357354991.

The product of its (nonzero) digits is 889056, while the sum is 52.

The square root of 714709978 is about 26734.0602602747. The cubic root of 714709978 is about 894.0804837897.

The spelling of 714709978 in words is "seven hundred fourteen million, seven hundred nine thousand, nine hundred seventy-eight".