7654321001 has 4 divisors (see below), whose sum is σ = 7656201600. Its totient is φ = 7652440404.

The previous prime is 7654320983. The next prime is 7654321007. The reversal of 7654321001 is 1001234567.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1001234567 = 17 ⋅58896151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7654321001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7654321007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934181 + ... + 942338.

It is an arithmetic number, because the mean of its divisors is an integer number (1914050400).

Almost surely, 2^7654321001 is an apocalyptic number.

It is an amenable number.

7654321001 is a deficient number, since it is larger than the sum of its proper divisors (1880599).

7654321001 is a wasteful number, since it uses less digits than its factorization.

7654321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880598.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 7654321001 is about 87488.9764541796. The cubic root of 7654321001 is about 1970.7682506988.

Adding to 7654321001 its reverse (1001234567), we get a palindrome (8655555568).

The spelling of 7654321001 in words is "seven billion, six hundred fifty-four million, three hundred twenty-one thousand, one".