7090900261 has 8 divisors (see below), whose sum is σ = 7284781944. Its totient is φ = 6897136320.

The previous prime is 7090900259. The next prime is 7090900273. The reversal of 7090900261 is 1620090907.

It can be written as a sum of positive squares in 4 ways, for example, as 2155837761 + 4935062500 = 46431^2 + 70250^2 .

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 7090900261 - 2¹ = 7090900259 is a prime.

It is a super-2 number, since 2×7090900261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7090900361) 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, 100371 + ... + 155743.

It is an arithmetic number, because the mean of its divisors is an integer number (910597743).

Almost surely, 2^7090900261 is an apocalyptic number.

It is an amenable number.

7090900261 is a deficient number, since it is larger than the sum of its proper divisors (193881683).

7090900261 is a wasteful number, since it uses less digits than its factorization.

7090900261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58871.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 7090900261 is about 84207.4834026050. The cubic root of 7090900261 is about 1921.1758802675.

The spelling of 7090900261 in words is "seven billion, ninety million, nine hundred thousand, two hundred sixty-one".