6429090997 has 16 divisors (see below), whose sum is σ = 7608585600. Its totient is φ = 5315244480.

The previous prime is 6429090931. The next prime is 6429091007. The reversal of 6429090997 is 7990909246.

It is not a de Polignac number, because 6429090997 - 2⁷ = 6429090869 is a prime.

It is a super-2 number, since 2×6429090997² = 82666422095412908018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6429090197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191754 + ... + 222772.

It is an arithmetic number, because the mean of its divisors is an integer number (475536600).

Almost surely, 2^6429090997 is an apocalyptic number.

It is an amenable number.

6429090997 is a deficient number, since it is larger than the sum of its proper divisors (1179494603).

6429090997 is a wasteful number, since it uses less digits than its factorization.

6429090997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32076.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The square root of 6429090997 is about 80181.6125866773. The cubic root of 6429090997 is about 1859.4443745439. Note that the first 3 decimals are identical.

The spelling of 6429090997 in words is "six billion, four hundred twenty-nine million, ninety thousand, nine hundred ninety-seven".