1347980856 has 64 divisors (see below), whose sum is σ = 3473500800. Its totient is φ = 435673728.

The previous prime is 1347980833. The next prime is 1347980891. The reversal of 1347980856 is 6580897431.

It is a junction number, because it is equal to n+sod(n) for n = 1347980799 and 1347980808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138750 + ... + 148146.

It is an arithmetic number, because the mean of its divisors is an integer number (54273450).

Almost surely, 2^1347980856 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 1347980856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1736750400).

1347980856 is an abundant number, since it is smaller than the sum of its proper divisors (2125519944).

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

1347980856 is a wasteful number, since it uses less digits than its factorization.

1347980856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9588 (or 9584 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 1347980856 is about 36714.8587904135. The cubic root of 1347980856 is about 1104.6581679832.

The spelling of 1347980856 in words is "one billion, three hundred forty-seven million, nine hundred eighty thousand, eight hundred fifty-six".