1992215 has 8 divisors (see below), whose sum is σ = 2467968. Its totient is φ = 1542240.

The previous prime is 1992203. The next prime is 1992227. The reversal of 1992215 is 5122991.

It is an interprime number because it is at equal distance from previous prime (1992203) and next prime (1992227).

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

It is not a de Polignac number, because 1992215 - 2⁸ = 1991959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6272 + ... + 6581.

It is an arithmetic number, because the mean of its divisors is an integer number (308496).

2^1992215 is an apocalyptic number.

1992215 is a deficient number, since it is larger than the sum of its proper divisors (475753).

1992215 is a wasteful number, since it uses less digits than its factorization.

1992215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12889.

The product of its digits is 1620, while the sum is 29.

The square root of 1992215 is about 1411.4584655596. The cubic root of 1992215 is about 125.8284176649.

The spelling of 1992215 in words is "one million, nine hundred ninety-two thousand, two hundred fifteen".