962621978 has 4 divisors (see below), whose sum is σ = 1443932970. Its totient is φ = 481310988.

The previous prime is 962621977. The next prime is 962621983. The reversal of 962621978 is 879126269.

It is a happy number.

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., 943288369 + 19333609 = 30713^2 + 4397^2 .

It is not an unprimeable number, because it can be changed into a prime (962621971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240655493 + ... + 240655496.

Almost surely, 2^962621978 is an apocalyptic number.

962621978 is a deficient number, since it is larger than the sum of its proper divisors (481310992).

962621978 is a wasteful number, since it uses less digits than its factorization.

962621978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481310991.

The product of its digits is 653184, while the sum is 50.

The square root of 962621978 is about 31026.1499061679. The cubic root of 962621978 is about 987.3821180227.

The spelling of 962621978 in words is "nine hundred sixty-two million, six hundred twenty-one thousand, nine hundred seventy-eight".