1375797984 has 48 divisors (see below), whose sum is σ = 3939788160. Its totient is φ = 416908160.

The previous prime is 1375797971. The next prime is 1375797989. The reversal of 1375797984 is 4897975731.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375797989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650364 + ... + 652475.

It is an arithmetic number, because the mean of its divisors is an integer number (82078920).

Almost surely, 2^1375797984 is an apocalyptic number.

It is an amenable number.

1375797984 is an abundant number, since it is smaller than the sum of its proper divisors (2563990176).

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

1375797984 is a wasteful number, since it uses less digits than its factorization.

1375797984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302863 (or 1302855 counting only the distinct ones).

The product of its digits is 13335840, while the sum is 60.

The square root of 1375797984 is about 37091.7508888432. The cubic root of 1375797984 is about 1112.2051188995.

The spelling of 1375797984 in words is "one billion, three hundred seventy-five million, seven hundred ninety-seven thousand, nine hundred eighty-four".