1977713 has 8 divisors (see below), whose sum is σ = 2090880. Its totient is φ = 1867600.

The previous prime is 1977709. The next prime is 1977719. The reversal of 1977713 is 3177791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1977713 - 2² = 1977709 is a prime.

It is a super-2 number, since 2×1977713² = 7822697420738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1977719) 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, 638 + ... + 2088.

It is an arithmetic number, because the mean of its divisors is an integer number (261360).

2^1977713 is an apocalyptic number.

It is an amenable number.

1977713 is a deficient number, since it is larger than the sum of its proper divisors (113167).

1977713 is a wasteful number, since it uses less digits than its factorization.

1977713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its digits is 9261, while the sum is 35.

The square root of 1977713 is about 1406.3118430846. The cubic root of 1977713 is about 125.5223580955.

The spelling of 1977713 in words is "one million, nine hundred seventy-seven thousand, seven hundred thirteen".