78983425 has 24 divisors (see below), whose sum is σ = 101056032. Its totient is φ = 61200000.

The previous prime is 78983423. The next prime is 78983473. The reversal of 78983425 is 52438987.

It is not a de Polignac number, because 78983425 - 2¹ = 78983423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78983423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257122 + ... + 257428.

It is an arithmetic number, because the mean of its divisors is an integer number (4210668).

Almost surely, 2^78983425 is an apocalyptic number.

It is an amenable number.

78983425 is a deficient number, since it is larger than the sum of its proper divisors (22072607).

78983425 is a wasteful number, since it uses less digits than its factorization.

78983425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 604 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 78983425 is about 8887.2619518050. The cubic root of 78983425 is about 429.0540318779.

It can be divided in two parts, 78 and 983425, that added together give a triangular number (983503 = T₁₄₀₂).

The spelling of 78983425 in words is "seventy-eight million, nine hundred eighty-three thousand, four hundred twenty-five".