761869 has 2 divisors, whose sum is σ = 761870. Its totient is φ = 761868.

The previous prime is 761863. The next prime is 761879. The reversal of 761869 is 968167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 570025 + 191844 = 755^2 + 438^2 .

It is a cyclic number.

It is not a de Polignac number, because 761869 - 2³ = 761861 is a prime.

It is a super-2 number, since 2×761869² = 1160888746322, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (761861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380934 + 380935.

It is an arithmetic number, because the mean of its divisors is an integer number (380935).

2⁷⁶¹⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

761869 is a deficient number, since it is larger than the sum of its proper divisors (1).

761869 is an equidigital number, since it uses as much as digits as its factorization.

761869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 761869 is about 872.8510754991. The cubic root of 761869 is about 91.3327990568.

The spelling of 761869 in words is "seven hundred sixty-one thousand, eight hundred sixty-nine".