1062991 has 8 divisors (see below), whose sum is σ = 1121760. Its totient is φ = 1005312.

The previous prime is 1062989. The next prime is 1063001. The reversal of 1062991 is 1992601.

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 1062991 - 2¹ = 1062989 is a prime.

It is a super-2 number, since 2×1062991² = 2259899732162, which contains 22 as substring.

It is a Duffinian number.

1062991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1062911) 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, 2395 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (140220).

2^1062991 is an apocalyptic number.

1062991 is a deficient number, since it is larger than the sum of its proper divisors (58769).

1062991 is a wasteful number, since it uses less digits than its factorization.

1062991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1062991 is about 1031.0145488789. The cubic root of 1062991 is about 102.0570935011.

It can be divided in two parts, 10 and 62991, that added together give a square (63001 = 251²).

The spelling of 1062991 in words is "one million, sixty-two thousand, nine hundred ninety-one".