78362925 has 12 divisors (see below), whose sum is σ = 129560160. Its totient is φ = 41793520.

The previous prime is 78362923. The next prime is 78362927. The reversal of 78362925 is 52926387.

It is an interprime number because it is at equal distance from previous prime (78362923) and next prime (78362927).

It is not a de Polignac number, because 78362925 - 2¹ = 78362923 is a prime.

It is a super-2 number, since 2×78362925² = 12281496029111250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78362923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 522345 + ... + 522494.

It is an arithmetic number, because the mean of its divisors is an integer number (10796680).

Almost surely, 2^78362925 is an apocalyptic number.

78362925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78362925 is a deficient number, since it is larger than the sum of its proper divisors (51197235).

78362925 is a wasteful number, since it uses less digits than its factorization.

78362925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044852 (or 1044847 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 78362925 is about 8852.2836036810. The cubic root of 78362925 is about 427.9275159663.

The spelling of 78362925 in words is "seventy-eight million, three hundred sixty-two thousand, nine hundred twenty-five".