39825973 has 16 divisors (see below), whose sum is σ = 44396352. Its totient is φ = 35424000.

The previous prime is 39825941. The next prime is 39825977. The reversal of 39825973 is 37952893.

It is a cyclic number.

It is not a de Polignac number, because 39825973 - 2⁵ = 39825941 is a prime.

It is a super-2 number, since 2×39825973² = 3172216250793458, which contains 22 as substring.

39825973 is a modest number, since divided by 5973 gives 3982 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39825977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165133 + ... + 165373.

It is an arithmetic number, because the mean of its divisors is an integer number (2774772).

Almost surely, 2^39825973 is an apocalyptic number.

It is an amenable number.

39825973 is a deficient number, since it is larger than the sum of its proper divisors (4570379).

39825973 is a wasteful number, since it uses less digits than its factorization.

39825973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its digits is 408240, while the sum is 46.

The square root of 39825973 is about 6310.7822811439. The cubic root of 39825973 is about 341.4984983503.

Subtracting from 39825973 its reverse (37952893), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 39825973 in words is "thirty-nine million, eight hundred twenty-five thousand, nine hundred seventy-three".