1961877 has 8 divisors (see below), whose sum is σ = 2729664. Its totient is φ = 1251008.

The previous prime is 1961873. The next prime is 1961887. The reversal of 1961877 is 7781691.

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

It is a cyclic number.

It is not a de Polignac number, because 1961877 - 2² = 1961873 is a prime.

It is a super-2 number, since 2×1961877² = 7697922726258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961873) 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, 14148 + ... + 14285.

It is an arithmetic number, because the mean of its divisors is an integer number (341208).

2^1961877 is an apocalyptic number.

It is an amenable number.

1961877 is a deficient number, since it is larger than the sum of its proper divisors (767787).

1961877 is a wasteful number, since it uses less digits than its factorization.

1961877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28459.

The product of its digits is 21168, while the sum is 39.

The square root of 1961877 is about 1400.6701967273. The cubic root of 1961877 is about 125.1864311425.

The spelling of 1961877 in words is "one million, nine hundred sixty-one thousand, eight hundred seventy-seven".