7661026 has 4 divisors (see below), whose sum is σ = 11491542. Its totient is φ = 3830512.

The previous prime is 7660993. The next prime is 7661029. The reversal of 7661026 is 6201667.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7568001 + 93025 = 2751^2 + 305^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7660985 and 7661003.

It is not an unprimeable number, because it can be changed into a prime (7661029) 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 as a sum of consecutive naturals, namely, 1915255 + ... + 1915258.

Almost surely, 2^7661026 is an apocalyptic number.

7661026 is a deficient number, since it is larger than the sum of its proper divisors (3830516).

7661026 is a wasteful number, since it uses less digits than its factorization.

7661026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830515.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 7661026 is about 2767.8558488476. The cubic root of 7661026 is about 197.1343531103.

It can be divided in two parts, 76610 and 26, that added together give a triangular number (76636 = T₃₉₁).

The spelling of 7661026 in words is "seven million, six hundred sixty-one thousand, twenty-six".