1029978 has 12 divisors (see below), whose sum is σ = 2231658. Its totient is φ = 343320.

The previous prime is 1029967. The next prime is 1029983. The reversal of 1029978 is 8799201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 558009 + 471969 = 747^2 + 687^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28593 + ... + 28628.

2^1029978 is an apocalyptic number.

1029978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1029978 is an abundant number, since it is smaller than the sum of its proper divisors (1201680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1029978 is a wasteful number, since it uses less digits than its factorization.

1029978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57229 (or 57226 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1029978 is about 1014.8783178293. The cubic root of 1029978 is about 100.9894443761.

The spelling of 1029978 in words is "one million, twenty-nine thousand, nine hundred seventy-eight".