77425070 has 16 divisors (see below), whose sum is σ = 144171360. Its totient is φ = 29901984.

The previous prime is 77425063. The next prime is 77425079. The reversal of 77425070 is 7052477.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77425079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133202 + ... + 133781.

It is an arithmetic number, because the mean of its divisors is an integer number (9010710).

Almost surely, 2^77425070 is an apocalyptic number.

77425070 is a deficient number, since it is larger than the sum of its proper divisors (66746290).

77425070 is a wasteful number, since it uses less digits than its factorization.

77425070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267019.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 77425070 is about 8799.1516636549. The cubic root of 77425070 is about 426.2135006572.

The spelling of 77425070 in words is "seventy-seven million, four hundred twenty-five thousand, seventy".