7626138 has 16 divisors (see below), whose sum is σ = 16425696. Its totient is φ = 2346480.

The previous prime is 7626137. The next prime is 7626139. The reversal of 7626138 is 8316267.

It is an interprime number because it is at equal distance from previous prime (7626137) and next prime (7626139).

It is a junction number, because it is equal to n+sod(n) for n = 7626099 and 7626108.

It is not an unprimeable number, because it can be changed into a prime (7626137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48808 + ... + 48963.

It is an arithmetic number, because the mean of its divisors is an integer number (1026606).

Almost surely, 2^7626138 is an apocalyptic number.

7626138 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

7626138 is an abundant number, since it is smaller than the sum of its proper divisors (8799558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7626138 is a wasteful number, since it uses less digits than its factorization.

7626138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97789.

The product of its digits is 12096, while the sum is 33.

The square root of 7626138 is about 2761.5463059670. The cubic root of 7626138 is about 196.8346504359.

The spelling of 7626138 in words is "seven million, six hundred twenty-six thousand, one hundred thirty-eight".