772669 has 2 divisors, whose sum is σ = 772670. Its totient is φ = 772668.

The previous prime is 772663. The next prime is 772691. The reversal of 772669 is 966277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396900 + 375769 = 630^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 772669 - 2³ = 772661 is a prime.

It is a super-2 number, since 2×772669² = 1194034767122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (772661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386334 + 386335.

It is an arithmetic number, because the mean of its divisors is an integer number (386335).

2⁷⁷²⁶⁶⁹ is an apocalyptic number.

772669 is the 508-th hex number.

It is an amenable number.

772669 is a deficient number, since it is larger than the sum of its proper divisors (1).

772669 is an equidigital number, since it uses as much as digits as its factorization.

772669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 772669 is about 879.0159270457. The cubic root of 772669 is about 91.7623434455.

It can be divided in two parts, 772 and 669, that added together give a palindrome (1441).

The spelling of 772669 in words is "seven hundred seventy-two thousand, six hundred sixty-nine".