978348862 has 4 divisors (see below), whose sum is σ = 1467523296. Its totient is φ = 489174430.

The previous prime is 978348853. The next prime is 978348863. The reversal of 978348862 is 268843879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 268843879 = 1069 ⋅251491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978348863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244587214 + ... + 244587217.

It is an arithmetic number, because the mean of its divisors is an integer number (366880824).

Almost surely, 2^978348862 is an apocalyptic number.

978348862 is a deficient number, since it is larger than the sum of its proper divisors (489174434).

978348862 is a wasteful number, since it uses less digits than its factorization.

978348862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489174433.

The product of its digits is 4644864, while the sum is 55.

The square root of 978348862 is about 31278.5687332397. The cubic root of 978348862 is about 992.7302325491.

The spelling of 978348862 in words is "nine hundred seventy-eight million, three hundred forty-eight thousand, eight hundred sixty-two".