7640061 has 24 divisors (see below), whose sum is σ = 12065760. Its totient is φ = 4271520.

The previous prime is 7640053. The next prime is 7640069. The reversal of 7640061 is 1600467.

It is an interprime number because it is at equal distance from previous prime (7640053) and next prime (7640069).

It is not a de Polignac number, because 7640061 - 2³ = 7640053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3910 + ... + 5528.

It is an arithmetic number, because the mean of its divisors is an integer number (502740).

Almost surely, 2^7640061 is an apocalyptic number.

It is an amenable number.

7640061 is a deficient number, since it is larger than the sum of its proper divisors (4425699).

7640061 is a wasteful number, since it uses less digits than its factorization.

7640061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 7640061 is about 2764.0660267078. The cubic root of 7640061 is about 196.9543642735.

The spelling of 7640061 in words is "seven million, six hundred forty thousand, sixty-one".