34780725 has 96 divisors (see below), whose sum is σ = 77495040. Its totient is φ = 14929920.

The previous prime is 34780721. The next prime is 34780747. The reversal of 34780725 is 52708743.

It is not a de Polignac number, because 34780725 - 2² = 34780721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34780725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34780721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 80109 + ... + 80541.

It is an arithmetic number, because the mean of its divisors is an integer number (807240).

Almost surely, 2^34780725 is an apocalyptic number.

34780725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34780725 is an abundant number, since it is smaller than the sum of its proper divisors (42714315).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34780725 is a wasteful number, since it uses less digits than its factorization.

34780725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 34780725 is about 5897.5185459649. The cubic root of 34780725 is about 326.4220917952.

The spelling of 34780725 in words is "thirty-four million, seven hundred eighty thousand, seven hundred twenty-five".