712007780 has 96 divisors (see below), whose sum is σ = 1712406528. Its totient is φ = 246153600.

The previous prime is 712007771. The next prime is 712007801. The reversal of 712007780 is 87700217.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1128065 + ... + 1128695.

It is an arithmetic number, because the mean of its divisors is an integer number (17837568).

Almost surely, 2^712007780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712007780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856203264).

712007780 is an abundant number, since it is smaller than the sum of its proper divisors (1000398748).

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

712007780 is a wasteful number, since it uses less digits than its factorization.

712007780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 712007780 is about 26683.4739117679. The cubic root of 712007780 is about 892.9522715130.

Adding to 712007780 its reverse (87700217), we get a palindrome (799707997).

The spelling of 712007780 in words is "seven hundred twelve million, seven thousand, seven hundred eighty".