1039972 has 6 divisors (see below), whose sum is σ = 1819958. Its totient is φ = 519984.

The previous prime is 1039949. The next prime is 1039979. The reversal of 1039972 is 2799301.

It can be written as a sum of positive squares in only one way, i.e., 599076 + 440896 = 774^2 + 664^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1039979) 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, 129993 + ... + 130000.

2^1039972 is an apocalyptic number.

It is an amenable number.

1039972 is a deficient number, since it is larger than the sum of its proper divisors (779986).

1039972 is a wasteful number, since it uses less digits than its factorization.

1039972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259997 (or 259995 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1039972 is about 1019.7901744967. The cubic root of 1039972 is about 101.3150311282.

The spelling of 1039972 in words is "one million, thirty-nine thousand, nine hundred seventy-two".