867671925 has 36 divisors (see below), whose sum is σ = 1523938176. Its totient is φ = 435526400.

The previous prime is 867671923. The next prime is 867671939. The reversal of 867671925 is 529176768.

It is not a de Polignac number, because 867671925 - 2¹ = 867671923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867671923) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1660 + ... + 41690.

It is an arithmetic number, because the mean of its divisors is an integer number (42331616).

Almost surely, 2^867671925 is an apocalyptic number.

867671925 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

867671925 is a deficient number, since it is larger than the sum of its proper divisors (656266251).

867671925 is a wasteful number, since it uses less digits than its factorization.

867671925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40078 (or 40056 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 867671925 is about 29456.2714035568. The cubic root of 867671925 is about 953.7879875989.

It can be divided in two parts, 8676 and 71925, that added together give a triangular number (80601 = T₄₀₁).

The spelling of 867671925 in words is "eight hundred sixty-seven million, six hundred seventy-one thousand, nine hundred twenty-five".