7920101 has 16 divisors (see below), whose sum is σ = 9338880. Its totient is φ = 6577200.

The previous prime is 7920091. The next prime is 7920139. The reversal of 7920101 is 1010297.

It is not a de Polignac number, because 7920101 - 2¹⁴ = 7903717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920401) 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, 52376 + ... + 52526.

It is an arithmetic number, because the mean of its divisors is an integer number (583680).

Almost surely, 2^7920101 is an apocalyptic number.

It is an amenable number.

7920101 is a deficient number, since it is larger than the sum of its proper divisors (1418779).

7920101 is a wasteful number, since it uses less digits than its factorization.

7920101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 7920101 is about 2814.2674002305. The cubic root of 7920101 is about 199.3319460039.

Adding to 7920101 its reverse (1010297), we get a palindrome (8930398).

The spelling of 7920101 in words is "seven million, nine hundred twenty thousand, one hundred one".