2963978 has 4 divisors (see below), whose sum is σ = 4445970. Its totient is φ = 1481988.

The previous prime is 2963977. The next prime is 2963999. The reversal of 2963978 is 8793692.

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., 1555009 + 1408969 = 1247^2 + 1187^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2963971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740993 + ... + 740996.

2^2963978 is an apocalyptic number.

2963978 is a deficient number, since it is larger than the sum of its proper divisors (1481992).

2963978 is a wasteful number, since it uses less digits than its factorization.

2963978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481991.

The product of its digits is 163296, while the sum is 44.

The square root of 2963978 is about 1721.6207480162. The cubic root of 2963978 is about 143.6453786955.

The spelling of 2963978 in words is "two million, nine hundred sixty-three thousand, nine hundred seventy-eight".