1953429679 has 2 divisors, whose sum is σ = 1953429680. Its totient is φ = 1953429678.

The previous prime is 1953429661. The next prime is 1953429683. The reversal of 1953429679 is 9769243591.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1953429679 - 2¹⁹ = 1952905391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1953429619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976714839 + 976714840.

It is an arithmetic number, because the mean of its divisors is an integer number (976714840).

Almost surely, 2^1953429679 is an apocalyptic number.

1953429679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1953429679 is an equidigital number, since it uses as much as digits as its factorization.

1953429679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 55.

The square root of 1953429679 is about 44197.6207391303. The cubic root of 1953429679 is about 1250.0649948071.

It can be divided in two parts, 19534296 and 79, that added together give a triangular number (19534375 = T₆₂₅₀).

The spelling of 1953429679 in words is "one billion, nine hundred fifty-three million, four hundred twenty-nine thousand, six hundred seventy-nine".