7292720954 has 4 divisors (see below), whose sum is σ = 10939081434. Its totient is φ = 3646360476.

The previous prime is 7292720933. The next prime is 7292720959. The reversal of 7292720954 is 4590272927.

It is a happy number.

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., 5764301929 + 1528419025 = 75923^2 + 39095^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7292720899 and 7292720908.

It is not an unprimeable number, because it can be changed into a prime (7292720959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1823180237 + ... + 1823180240.

Almost surely, 2^7292720954 is an apocalyptic number.

7292720954 is a deficient number, since it is larger than the sum of its proper divisors (3646360480).

7292720954 is a wasteful number, since it uses less digits than its factorization.

7292720954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646360479.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 7292720954 is about 85397.4294343805. The cubic root of 7292720954 is about 1939.2324304322.

The spelling of 7292720954 in words is "seven billion, two hundred ninety-two million, seven hundred twenty thousand, nine hundred fifty-four".