1375772 has 6 divisors (see below), whose sum is σ = 2407608. Its totient is φ = 687884.

The previous prime is 1375769. The next prime is 1375783. The reversal of 1375772 is 2775731.

It is a d-powerful number, because it can be written as 1 + 3¹² + 7³ + 5⁵ + 7⁵ + 7⁷ + 2⁹ .

It is a plaindrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171968 + ... + 171975.

It is an arithmetic number, because the mean of its divisors is an integer number (401268).

2^1375772 is an apocalyptic number.

It is an amenable number.

1375772 is a deficient number, since it is larger than the sum of its proper divisors (1031836).

1375772 is a wasteful number, since it uses less digits than its factorization.

1375772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343947 (or 343945 counting only the distinct ones).

The product of its digits is 10290, while the sum is 32.

The square root of 1375772 is about 1172.9330756697. The cubic root of 1375772 is about 111.2198116970.

The spelling of 1375772 in words is "one million, three hundred seventy-five thousand, seven hundred seventy-two".