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6497961 = 3171031237
BaseRepresentation
bin11000110010011010101001
3110020010112020
4120302122221
53130413321
6351135053
7106142331
oct30623251
913203466
106497961
113739018
122214489
131466862
14c120c1
158854c6
hex6326a9

6497961 has 16 divisors (see below), whose sum is σ = 9270144. Its totient is φ = 4034304.

The previous prime is 6497957. The next prime is 6497969. The reversal of 6497961 is 1697946.

It is not a de Polignac number, because 6497961 - 22 = 6497957 is a prime.

6497961 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6497969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4635 + ... + 5871.

It is an arithmetic number, because the mean of its divisors is an integer number (579384).

Almost surely, 26497961 is an apocalyptic number.

It is an amenable number.

6497961 is a deficient number, since it is larger than the sum of its proper divisors (2772183).

6497961 is a wasteful number, since it uses less digits than its factorization.

6497961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its digits is 81648, while the sum is 42.

The square root of 6497961 is about 2549.1098446320. The cubic root of 6497961 is about 186.6060414660.

The spelling of 6497961 in words is "six million, four hundred ninety-seven thousand, nine hundred sixty-one".

Divisors: 1 3 17 51 103 309 1237 1751 3711 5253 21029 63087 127411 382233 2165987 6497961